Fused Silica, Fused Quartz, & Borosilicate,
(Q) What is Silica Glass or fused silica?
(A) Silica Glass is a generic term used to describe "both" fused quartz (made by melting natural
quartz crystals) and silica glass (created through a synthetic chemical process). Both forms provide
an exceptional range of properties including: Very low expansion coefficient, Broad transparency
range from deep ultraviolet to near infrared, High corrosion resistance, High temperature capability,
And best of all for us cutters, great transparent inexpensive faceting material, usually flawless in
laser varieties, and slight gas type inclusions in ornamental varieties.
(Q) What is Borosilicate?
(A) Borosilicate is optical glass used in laser applications, usualy clear, also it is the hardest of
the Silica Glasses, a full 7, where as Silica may be a hardness of 5.5 & Fused Qtz. 5.5 to 6.5
(Q) What is Fused Quartz?
(A) Discription: This material is harder than silica glass, but not as hard as Hydrothermal Qtz..
This is due to the fact that the material is melted and poured into bars, rather than being grown.
As a result of this method, some material may contain tiny gas inclusions, but most are not visable
to the un-aided eye. The ones that are can be removed by trimming pryor to, or during cutting.
Advantages, Disadvantages: While Fused Qtz., is not as hard as "Hydrothermal Qtz", it comes
in a much wider range of colors, offering cutters many more choices than its Hydrothermal cousin,
also is very easy to cut, and takes as good high polish.
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Jewelers Silica
Discription: Hardness: 5 to 5.5, Refractive Index: 1.52 to 1.69,
Specific Gravity: 2.3 to 5. All above depends on batch & color.
Best polish, cerium oxide.
The default order is 100 ct. lots, as it is not possible to saw pieces into exact
sizes, actual lots may be from 100 cts., to approx., 125 cts.. Your cost will be adjusted
for the exact weight of the lot you receive, and price differance will be reflected in
your 2nd email order confirmation. Lots average from 1 to 4 pcs. per 100cts.
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Aqua Silica
100cts....$5.00
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Dark Aqua Silica
100cts....$5.00
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Rose Silica
100cts....$5.00
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Intence Cobalt Silica
100cts....$6.00
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Peach Tourmaline Silica
100cts....$5.00
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Amethyst (1) Silica
Kind of Iolite tinted.
100cts....$5.00
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Amethyst (2) Silica
kind of Tanzanite tinted.
100cts....$5.00
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Emerald Silica
100cts....$7.00
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Fused Qtz.
Discription: Hardness: 5.5 to 6.5, Refractive Index: 1.52 to 1.69,
Specific Gravity: 2.3 to 5. All above depends on batch & color.
Best polish, cerium oxide.
The default order is 100 ct. lots, as it is not possible to saw pieces into exact
sizes, actual lots may be from 100 cts., to approx., 125 cts.. Your cost will be adjusted
for the exact weight of the lot you receive, and price differance will be reflected in
your 2nd email order confirmation. Lots average from 1 to 4 pcs. per 100cts.
**Note: Tanzanite Fused Qtz., lots average 2 to 8 pieces per 100ct., lot.**
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Dark Golden Citrine Fused Qtz.
100cts....$10.00
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Deep Emerald Fused Qtz.
100cts....$12.00
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Cherry Opal Fused Qtz.
100cts....$10.00
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Dark Blue Sapphire Fused Qtz.
100cts....$10.00
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Deep Garnet Fused Qtz.
100cts....$12.00
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Green Tourmaline Fused Qtz.
100cts....$9.00
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Chrome Tourmaline Fused Qtz.
100cts....$10.00
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Amethyst Fused Qtz.
100cts....$7.00
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Dark Aqua Fused Qtz.
100cts....$7.00
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Electric Blue Topaz
Fused Qtz.
100cts....$7.00
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Note: Tanzanite Fused Qtz., lots average
3 to 8 pieces per 100ct., lot.
Tanzanite Fused Qtz.
100cts....$10.00
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Imperial Topaz Fused Qtz.
100cts....$10.00
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Golden Topaz Fused Qtz.
100cts....$10.00
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Morganite Fused Qtz.
100cts....$8.00
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Dark Lavender/Blue CC Fused Qtz.
Color Change is from Dark Lavender to a light/medium
Iolite/Tanzanite color, change is 100% and much better
than the change you see in Nob. Doped Silica.
100cts....$8.00
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Cubic Zirconia
Discription: Hardness 8.5, refractive index 2.17,
Specific Gravity: 5.65 to 5.95
Best polish, diamond.
The default order is 100 ct. lots, as it is not possible to saw pieces into exact
sizes, actual lots may be from 100 cts., to approx., 125 cts.. Your cost will be adjusted
for the exact weight of the lot you receive, and price differance will be reflected in
your 2nd email order confirmation. Lots average from 1 to 4 pcs. per 100cts.
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Lavender/Blue CZ.
Color Change is from Lavender to a light/medium
blue color.
100cts....$9.00
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White CZ.
100cts....$8.00
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Pink CZ.
100cts....$9.00
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Imperial Topaz CZ.
100cts....$10.00
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