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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (28): Howlite Clear All
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ID: 4229843 pcs
69.17ctw Howlite
14.45mm
USD 55.34
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ID: 3211111 pcs
7.51ct Howlite
16.20mm x 12.38mm x 4.52mm
USD 18.77
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ID: 2735441 pcs
8.33ct Howlite
16.25mm x 12.44mm x 4.82mm
USD 20.82
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ID: 2735181 pcs
8.82ct Howlite
18.29mm x 13.23mm x 4.83mm
USD 22.05
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ID: 4229802 pcs
45.57ctw Howlite
14.44mm
USD 36.46
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ID: 3209692 pcs
10.86ctw Howlite
14.28mm x 10.33mm x 4.56mm
USD 27.15
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ID: 3224341 pcs
9.63ct Howlite
16.86mm x 12.86mm x 5.18mm
USD 24.07
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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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