Here are Todays Fab Natural Boulder Deals
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 OPALS BIG 500cts AUSTRALIAN OPAL DOUBLET FIT JEWELRY PENDANT OR RING 16x12mm $24.99 Time Remaining: 28d 10h 48m Buy It Now for only: $24.99 Buy It Now | Add to watch list |
 Natural Gem 5303ct Rainbow Sparkling Matrix Boulder OPAL QUEENSLAND AUSTRALIA $6.50 (3 Bids) Time Remaining: 30m Bid now | Add to watch list |
 Natural Gem 298ct Green Violet Blue Flashing Matrix Boulder OPAL QUEENSLAND $0.99 (1 Bid) Time Remaining: 1h 12m Bid now | Add to watch list |
 BEAUTIFUL TOP QUALITY BLACK FIRE MOSAIC GEM OPAL LAPIDARY DISCOUNT WHOLESALE $18.50 Time Remaining: 20d 9h 30m Buy It Now for only: $18.50 Buy It Now | Add to watch list |
 692 ct Unheated Crystal Lightning Boulder Freeform Opal $3.99 Time Remaining: 1h 26m Bid now | Add to watch list |
 OPALS 5cts AUSTRALIAN OPAL TRIPLET FOR JEWELRY PENDANT OR RING BIG 16x12mm $49.99 Time Remaining: 29d 10h 29m Buy It Now for only: $49.99 Buy It Now | Add to watch list |
 770 ct Deluxe Unheated Fossil Gem Boulder Solid AAA Opal $0.99 (1 Bid) Time Remaining: 1h 31m Bid now | Add to watch list |
 530 ct Marvelous Unheated Freeform Cab Boulder Solid Opal $3.99 Time Remaining: 1h 40m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 644carats 15mm across $99.00 Time Remaining: 28d 7h 35m Buy It Now for only: $99.00 Buy It Now | Add to watch list |
 1281 ct Extra Fossil Unheated Boulder Found In Clay Opal $3.99 Time Remaining: 1h 46m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 138carats 12mm across $169.00 Time Remaining: 28d 7h 49m Buy It Now for only: $169.00 Buy It Now | Add to watch list |
 1021 ct Astonishing Boulder Solid Unheated Fossil Opal NR $3.99 Time Remaining: 1h 50m Bid now | Add to watch list |
 Natural Gem 283ct Green Violet Blue Flashing Matrix Boulder OPAL QUEENSLAND $4.24 (3 Bids) Time Remaining: 1h 55m Bid now | Add to watch list |
 Boulder Opal Cabochons Free Form Set of 3 over 15cts 2090 $59.99 Time Remaining: 7d 23h 35m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 Natural Gem 651ct Rainbow Brilliant Matrix Boulder OPAL QUEENSLAND AUSTRALIA $12.28 (5 Bids) Time Remaining: 2h 9m Bid now | Add to watch list |
 NATURAL ETHIOPIAN FACET MULTICOLOUR FIRE GEM OPAL LAPIDARY DISCOUNT SALE $98.95 Time Remaining: 16h 12m Buy It Now for only: $98.95 Buy It Now | Add to watch list |
 465CT 100 Natural Australian Black Boulder Opal SBO600 $15.50 (7 Bids) Time Remaining: 3h 30m Bid now | Add to watch list |
 Natural Gem 1691ct Violet Green Blue Reflection Matrix Boulder OPAL QUEENSLAND $4.24 (2 Bids) Time Remaining: 5h 57m Bid now | Add to watch list |
 Australia Opal Inlay Boulder Opal Dice 16mm $26.99 Time Remaining: 22d 18h 11m Buy It Now for only: $26.99 Buy It Now | Add to watch list |
 Natural Gem 623ct Rainbow Brilliant Matrix Boulder OPAL QUEENSLAND AUSTRALIA $3.25 (2 Bids) Time Remaining: 6h 47m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 17carats 21mm across $199.00 Time Remaining: 28d 7h 51m Buy It Now for only: $199.00 Buy It Now | Add to watch list |
 Natural Gem 1978ct Red Orange Rainbow Flash Matrix Boulder OPAL QUEENSLAND $5.11 (4 Bids) Time Remaining: 7h 36m Bid now | Add to watch list |
 Natural Gem 136ct Red Orange Rainbow Sparkling Matrix Boulder OPAL QUEENSLAND $3.24 (2 Bids) Time Remaining: 7h 47m Bid now | Add to watch list |
 Australian Boulder Opal Chip Strand BP2140 $22.09 Time Remaining: 2d 9h 44m Buy It Now for only: $22.09 Buy It Now | Add to watch list |
 Boulder Matrix Opal Round Bead 2GREAT PATTERN BEADS $0.99 (1 Bid) Time Remaining: 7h 56m Bid now | Add to watch list |
 LIGHTNING RIDGE BLACK OPAL PARCEL FIRE CRYSTAL WHITE 20 pc 216cts $1,399.00 Time Remaining: 28d 10h 44m Buy It Now for only: $1,399.00 Buy It Now | Add to watch list |
 2120 Ct Dazzling Rainbow Flashing Natural Boulder Opal From Australia $9.99 Time Remaining: 8h 7m Bid now | Add to watch list |
 Boulder Matrix Opal Round Bead 7355ct PRETTY BRIGHT 99mm $1.29 (2 Bids) Time Remaining: 8h 43m Bid now | Add to watch list |
 Boulder Opal Stone BEAUTIFUL PENDANTS 1mmhole $15.00 Time Remaining: 27d 8h 55m Buy It Now for only: $15.00 Buy It Now | Add to watch list |
 Boulder Matrix Opal Round Bead FANTASTIC PAIR $0.99 (1 Bid) Time Remaining: 8h 44m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 2411carats 18mm across $199.00 Time Remaining: 27d 13h 13m Buy It Now for only: $199.00 Buy It Now | Add to watch list |
 Boulder Matrix Opal Round Bead SPLENDID FIRE $1.81 (3 Bids) Time Remaining: 8h 44m Bid now | Add to watch list |
 Boulder Opal Stone LOVELYPURPLE FIRE1mm HOLE $1.04 (2 Bids) Time Remaining: 8h 44m Bid now | Add to watch list |
 Australian Boulder Opal 5mm Bead Strand BP2136 $59.49 Time Remaining: 2d 9h 43m Buy It Now for only: $59.49 Buy It Now | Add to watch list |
 Boulder Matrix Opal Round Bead 816ct LOVELY PURPLE FIRE BRIGHT 10mm $0.99 (2 Bids) Time Remaining: 9h 36m Bid now | Add to watch list |
 170 Carat AUSTRALIAN OPAL DOUBLET OVAL GEMSTONE GEM STONE $16.99 Time Remaining: 27d 7h 10m Buy It Now for only: $16.99 Buy It Now | Add to watch list |
 Boulder Matrix Opal ROUND BEAD Strand YOULL LIKE IT $99.00 Time Remaining: 9h 40m Bid now | Add to watch list |
 Boulder Matrix Opal Round Bead STUNNING FIRE $0.99 (1 Bid) Time Remaining: 9h 41m Bid now | Add to watch list |
 BEAUTIFUL SOLID FIRE LAB GEM OPAL DISCOUNT SALE LAPIDARY $9.99 Time Remaining: 9d 8h 2m Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 Boulder Matrix Opal Round Beads GORGEOUS BEADS $0.99 (1 Bid) Time Remaining: 9h 41m Bid now | Add to watch list |
 BEAUTIFUL SOLID FIRE LAB GEM OPAL DISCOUNT SALE LAPIDARY $9.99 Time Remaining: 25d 11h Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 Boulder Opal Stone BEAUTIFUL FIRE PENDANTS $1.81 (3 Bids) Time Remaining: 9h 42m Bid now | Add to watch list |
 390ctALLURING MULTI COLOR BRIGHT Yowah Boulder OPAL $0.99 (1 Bid) Time Remaining: 10h 13m Bid now | Add to watch list |
 BEAUTIFUL SOLID FIRE LAB GEM OPAL DISCOUNT SALE LAPIDARY $9.99 Time Remaining: 26d 3h 36m Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 303ctPATTERNCOLORMIX BRIGHT Yowah Boulder OPAL $0.99 (1 Bid) Time Remaining: 10h 16m Bid now | Add to watch list |
 OPALS Ex Large 18x13mm AWESOME OPAL TRIPLET GEMSTONE SUIT PENDANT OR RING 6cts $65.99 Time Remaining: 29d 10h 49m Buy It Now for only: $65.99 Buy It Now | Add to watch list |
 2545ctLUMINOUS OF GREEN BRIGHT Yowah Boulder OPAL $0.99 (1 Bid) Time Remaining: 10h 19m Bid now | Add to watch list |
 290ctAWESOME OF VIOLET CRYSTAL Yowah Nut Boulder OPAL $0.99 (1 Bid) Time Remaining: 10h 22m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 323carats 12mm across $39.00 Time Remaining: 5d 7h 41m Buy It Now for only: $39.00 Buy It Now | Add to watch list |
 278ctMAGICALLY OF RAINBOW CRYSTAL Yowah Nut Boulder OPAL $6.51 (4 Bids) Time Remaining: 10h 25m Bid now | Add to watch list |
 Boulder Opal Cabochons 9x7mm Ovals Set of 8 over 14cts 2090 $59.99 Time Remaining: 7d 23h 46m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 ELECTRIC RED GREEN 5ct SOLID FAIRY OPAL SEE VIDEO $66.00 (12 Bids) Time Remaining: 10h 28m Bid now | Add to watch list |
 STUNNING GEM FLASHES 3ct SOLID BLACK MATRIX BOULDER OPAL VIDEO $36.00 (8 Bids) Time Remaining: 10h 31m Bid now | Add to watch list |
 Boulder Matrix Opal Round Bead 2 BEAUTIFUL FIRE BEADS $20.00 Time Remaining: 12d 7h 59m Buy It Now for only: $20.00 Buy It Now | Add to watch list |
 INTENSE GEM FLASH 2ct SOLID BLACK MATRIX BOULDER OPAL VIDEO $52.00 (10 Bids) Time Remaining: 10h 34m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 634carats 16mm across $199.00 Time Remaining: 28d 7h 38m Buy It Now for only: $199.00 Buy It Now | Add to watch list |
 1991 Ct Stunning Flashing Rainbow Australian Natural Boulder Opal $9.99 Time Remaining: 10h 37m Bid now | Add to watch list |
 BRIGHT FLASHY 7ct SOLID BLACK MATRIX BOULDER OPAL VIDEO $63.00 (7 Bids) Time Remaining: 10h 37m Bid now | Add to watch list |
 Natural Royston Turquoise Ribbon Boulder Cabochon 37 carat Cab $18.50 Time Remaining: 23d 4h 27m Buy It Now for only: $18.50 Buy It Now | Add to watch list |
 1979CT 100 Natural Australian Black Boulder Opal SBO653 $11.50 (17 Bids) Time Remaining: 10h 46m Bid now | Add to watch list |
 Boulder Matrix Opal Round Bead 2 LOVELY BEADS $9.99 Time Remaining: 13d 7h 49m Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 RICH MULTI COLORED 16ct SOLID FAIRY OPAL SEE VIDEO $53.02 (12 Bids) Time Remaining: 10h 49m Bid now | Add to watch list |
 1024 ct Extreme Unheated Boulder Solid Natural Aussie Opal $3.99 Time Remaining: 11h 13m Bid now | Add to watch list |
 LIGHTNING RIDGE POLISHED BLACK OPAL FIRE SOLID GEMSTONE 213ct 10x8x4mm $1,699.00 Time Remaining: 21d 18h 30m Buy It Now for only: $1,699.00 Buy It Now | Add to watch list |
 1421 ct Noble Boulder Solid Unheated Natural Aussie Opal $3.99 Time Remaining: 11h 22m Bid now | Add to watch list |
 OPALS 14x10mm CALIBRATED BLACK OPAL TRIPLET FIT JEWELRY PENDANT 35 cts $37.99 Time Remaining: 21d 10h 49m Buy It Now for only: $37.99 Buy It Now | Add to watch list |
 327CT 100 Natural Australian Black Boulder Opal SOB46 $8.00 (3 Bids) Time Remaining: 11h 31m Bid now | Add to watch list |
 1353 ct Extreme Boulder Solid Found In Clay Sandstone Opal $3.99 (1 Bid) Time Remaining: 11h 52m Bid now | Add to watch list |
 LIGHTNING RIDGE ROUGH OPAL FIRE SOLID GEMSTONE 429carats 15mm across $199.00 Time Remaining: 28d 7h 42m Buy It Now for only: $199.00 Buy It Now | Add to watch list |
 301 Ct Fabulous Fire Multi Color Flashing 100 Natural Australian Boulder Opal $9.99 (1 Bid) Time Remaining: 11h 53m Bid now | Add to watch list |
 BEAUTIFUL FIRE MOSAIC GEM OPAL LAPIDARY DISCOUNT WHOLESALE $18.50 Time Remaining: 9h 16m Buy It Now for only: $18.50 Buy It Now | Add to watch list |
 168 ct Majestic Sheen Party Colour Boulder Solid Gem Opal $2.99 Time Remaining: 12h 2m Bid now | Add to watch list |
 1144cts VERY RARE AUSTRALIAN NATURAL BOULDER OPAL $9.99 Time Remaining: 12h 14m Bid now | Add to watch list |
 150ct Natural Australian Black Boulder Opal CAB 11x24mm $8.99 Time Remaining: 28d 13h 58m Buy It Now for only: $8.99 Buy It Now | Add to watch list |
 135 CTNATURAL AUSTRALIA MULTI COLOR CRYSTAL MATRIX YOWAH BOULDER OPAL NR GEM $0.99 (1 Bid) Time Remaining: 13h 27m Bid now | Add to watch list |
 Boulder Opal Cabochon Free Form over 14cts 2090 $59.99 Time Remaining: 7d 21h 46m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 3690 ct WORLD CLASS TERRIFIC BLUEGREEN FLASHY AUSTRALIA MATRIX BOULDER OPAL $9.99 Time Remaining: 13h 31m Bid now | Add to watch list |
 610 CT NATURAL MATRIX PLAY OF COLORS AUSTRALIAN BOULDER OPAL $9.99 Time Remaining: 14h 41m Bid now | Add to watch list |
 Sparkling Natural Colourful Australian Boulder Opal $12.76 Time Remaining: 26d 23h 18m Buy It Now for only: $12.76 Buy It Now | Add to watch list |
 330 CT NATURAL MATRIX PLAY OF COLORS AUSTRALIAN BOULDER OPAL $9.99 Time Remaining: 14h 41m Bid now | Add to watch list |
 Boulder Matrix Opal Round Bead 3465ct FIRE PATTERN 7mm $9.99 Time Remaining: 15d 9h 11m Buy It Now for only: $9.99 Buy It Now | Add to watch list |
 2239 Cts AMAZING QUEENSLAND BOULDER DOUBLE NATURAL OPAL $9.99 Time Remaining: 16h 22m Bid now | Add to watch list |
 829 ct Splendid Freeform Boulder Solid Party Colour Opal $3.99 Time Remaining: 1d 1h 13m Bid now | Add to watch list |
 BEAUTIFUL BLACK FIRY MOSAIC GEM OPAL CABOCHON LAPIDARY DISCOUNT WHOLESALE $18.50 Time Remaining: 15d 4h 6m Buy It Now for only: $18.50 Buy It Now | Add to watch list |
 Natural Gem 3641ct Rainbow Sparkling Matrix Boulder OPAL QUEENSLAND AUSTRALIA $3.25 (2 Bids) Time Remaining: 1d 1h 16m Bid now | Add to watch list |
 OPALS 7x5mm AWESOME BLACK FIRE OPAL TRIPLET FOR JEWELRY RING OR PENDANT $14.99 Time Remaining: 8d 10h 49m Buy It Now for only: $14.99 Buy It Now | Add to watch list |
 465 ct Superior Unheated Boulder Solid Aussie Gem Opal NR $3.99 Time Remaining: 1d 1h 16m Bid now | Add to watch list |
 Natural Gem 313ct Red Orange Rainbow Flash Matrix Boulder OPAL QUEENSLAND $0.99 (1 Bid) Time Remaining: 1d 1h 38m Bid now | Add to watch list |
 4 BOULDER OPAL DOUBLETS FOR JEWELRY PENDANT FROM YOWAH 135 carats $24.00 Time Remaining: 2d 29m Buy It Now for only: $24.00 Buy It Now | Add to watch list |
 4 ct Majestic Freeform Cab Fossil Gem Boulder Solid Opal NR $0.99 Time Remaining: 1d 1h 43m Bid now | Add to watch list |
 2 Natural Royston Turquoise Ribbon Boulder 29carat Cabs $14.50 Time Remaining: 5d 9h 59m Buy It Now for only: $14.50 Buy It Now | Add to watch list |
 341 ct Awesome Fancy Colour Freeform Cab Boulder Gem Opal $3.99 Time Remaining: 1d 1h 46m Bid now | Add to watch list |
 Natural Gem 542ct Red Orange Rainbow Spangle Matrix Boulder OPAL QUEENSLAND $0.99 (1 Bid) Time Remaining: 1d 1h 50m Bid now | Add to watch list |
 Australian Boulder Opal 7mm Bead Strand BP2197 $62.04 Time Remaining: 24d 11h 25m Buy It Now for only: $62.04 Buy It Now | Add to watch list |
 268 ct Winsome Sheen Multicolour Crystal Boulder Gem Opal $2.99 Time Remaining: 1d 1h 52m Bid now | Add to watch list |
 Boulder Opal Cabochons Free Form Set of 3 over 13cts 2090 $59.99 Time Remaining: 7d 23h 23m Buy It Now for only: $59.99 Buy It Now | Add to watch list |
 Natural Gem 3294ct Violet Blue Green Reflecting Matrix Boulder OPAL QUEENSLAND $3.25 (2 Bids) Time Remaining: 1d 2h 3m Bid now | Add to watch list |
 67CT 100 Natural Australian Black Boulder Opal SBO632 $4.24 (10 Bids) Time Remaining: 1d 3h 30m Bid now | Add to watch list |
 LIGHTNING RIDGE POLISHED BLACK OPAL FIRE SOLID GEMSTONE 191ct 13x8x3 mm $1,999.00 Time Remaining: 21d 18h 35m Buy It Now for only: $1,999.00 Buy It Now | Add to watch list |
 Natural Gem 4158ct Red Orange Rainbow Sparkling Matrix Boulder OPAL QUEENSLAND $3.25 (2 Bids) Time Remaining: 1d 6h 19m Bid now | Add to watch list |
More Great Information on Natural Boulder:
Discovery of pine beetles breeding twice in a year helps explain increasing damage, CU researchers say (CU Boulder)
Long thought to produce only one generation of tree-killing offspring
annually, some populations of mountain pine beetles now produce two
generations per year, dramatically increasing the potential for the bugs to
kill lodgepole and ponderosa pine trees, University of Colorado Boulder
researchers have found.
Because of the extra annual generation of beetles, there could be up to 60
times as many beetles attacking trees in any given year, their study found.
And in response to warmer temperatures at high elevations, pine beetles also
are better able to survive and attack trees that haven’t previously developed
defenses.
These are among the key findings of Jeffry Mitton, a CU-Boulder professor of
ecology and evolutionary biology, and Scott Ferrenberg, a graduate student in
that department. The study is being published this month in The American
Naturalist.
This exponential increase in the beetle population might help to explain the
scope of the current beetle epidemic, which is the largest in history and
extends from the Sangre de Cristo Mountains in New Mexico to the Yukon
Territory near Alaska.
“This thing is immense,” Mitton said. The duo’s research, conducted in 2009
and 2010 at CU’s Mountain Research Station, located about 25 miles west of
Boulder, ...