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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (28): Howlite Howlite Clear All
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ID: 3224361 pcs
thumb image of 9.2ct Oval Cabochon Greyish White Howlite (ID: 322436)
9.15 ct Howlite
18.1 x 13.1 mm
$ 22.88
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ID: 3209692 pcs
thumb image of 10.9ct Oval Cabochon Greyish White Howlite (ID: 320969)
10.86 ct Howlite
14.3 x 10.3 mm
$ 27.15
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ID: 4229876 pcs
thumb image of 91.6ct Drilled Sphere Greyish White Howlite (ID: 422987)
91.64 ct Howlite
12.6 mm
$ 73.31
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ID: 4318831 pcs
thumb image of 8.2ct Oval Cabochon Greyish White Howlite (ID: 431883)
8.19 ct Howlite
16 x 12.5 mm
$ 14.66
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ID: 3224341 pcs
thumb image of 9.6ct Oval Cabochon Greyish White Howlite (ID: 322434)
9.63 ct Howlite
16.9 x 12.9 mm
$ 24.07
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ID: 3224381 pcs
thumb image of 10.1ct Oval Cabochon Greyish White Howlite (ID: 322438)
10.05 ct Howlite
18.3 x 13.3 mm
$ 25.12
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ID: 2735471 pcs
thumb image of 8.6ct Oval Cabochon Greyish White Howlite (ID: 273547)
8.56 ct Howlite
16.2 x 12.4 mm
$ 21.40
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1
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Howlite
By chemical composition, howlite is a calcium borosilicate hydroxide. It was first discovered at Tick Canyon in Southern California in 1868. It was named after Henry How (1828-1879), a Canadian mineralogist who first described it.

Howlite is typically white or grayish white with fine grey or black or brown veins, often in a web-like pattern. It is opaque with a sub-vitreous luster sometimes described as porcelaneous. It is usually found in borax deposits in the desert clays of California.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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