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., 105 cts.. Lots average from 1 to 4
pcs. per 100cts.
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Dark Aqua (simulated) Silica
100cts....$6.00
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Ruby (simulated) Silica
100cts....$9.00
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Rose Silica
100cts....$6.00
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Intence Cobalt Silica
100cts....$7.00
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Peach Tourmaline (simulated) Silica
100cts....$5.00
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Amethyst (1) (simulated) Silica
Kind of Iolite tinted.
100cts....$5.00
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Amethyst (2) (simulated) Silica
kind of Tanzanite tinted.
100cts....$5.00
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Emerald (simulated) Silica
100cts....$8.00
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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., 105 cts.. Lots average from 1 to 4
pcs. per 100cts.
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Tourmalike CC Fused Qtz.
Color Change is from Medium Dark Peach Tourmaline to a bright
Apple Greem color, change is 100% and very dramatic!
100cts....$12.00
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Dark Golden Citrine (simulated) Fused Qtz.
100cts....$10.00
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Emerald (simulated) Fused Qtz. Material is a bit
lighter than picture.
100cts....$12.00
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Morganite (simulated) Fused Qtz.
100cts....$8.00
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Cornflower Blue Sapphire (simulated) Fused Qtz.
100cts....$11.00
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Note: Deep Garnet Fused Qtz., lots average
3 to 8 pieces per 100ct., lot.
Deep Garnet (simulated) Fused Qtz.
100cts....$12.00
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Green Tourmaline (simulated) Fused Qtz.
100cts....$9.00
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Chrome Tourmaline (simulated) Fused Qtz.
100cts....$10.00
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Amethyst (simulated) Fused Qtz.
100cts....$7.00
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Dark Aqua Fused Qtz.
100cts....$7.00
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Electric Blue Topaz
(simulated) Fused Qtz.
100cts....$7.00
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Tanzanite (simulated) Fused Qtz.
100cts....$10.00
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Golden Topaz (simulated) Fused Qtz.
100cts....$10.00
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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....$9.00
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Large Single Synthetics
By The Piece
This area contains larger single pieces of rough for those of you who want to cut
"Monster" stones. These are the actual pictures of the piece you will receive.
Note: Pic's are not to scale. (mm = milimeter)(cc= color change)
Please Do Not Order Multiples Of The Same Piece.
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(lgsyn097)
Pink CZ
Approx. 29x23x21mm
250cts.
$22.50
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(lgsyn104)
Morganite (simulated) Fused Quartz
Approx. 66x29x28mm
720cts.
$72.00
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(lgsyn112)
Lav/Blue CC CZ
Approx. 35x25x22mm
470cts.
$42.80
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(lgsyn117)
Morganite (simulated) Fused Quartz
Approx. 37x22x21mm
325cts.
$26.00
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(lgsyn118)
Cornflower Sapphire (simulated)
Fused Quartz
Approx. 34x22x20mm
262cts.
$28.82
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(lgsyn121)
Tanzanite (simulated) Fused Quartz
Approx. 23x22x20mm
206cts.
$20.60
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(lgsyn123)
Tanzanite (simulated) Fused Quartz
Approx. 24x20x20mm
204cts.
$20.40
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