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Rainbow Calcite ("Onyx") Cutting Rough
Calcite is the gemstone form of calcium carbonate and often erroneously called "onyx". Calcite comes in many patterns and colors. Rainbow calcite has beautiful patterning in various colors and cuts fine cabochons. Calcite is a soft stone, so it is not a good choice for ring stones. Rainbow calcite cuts easily and takes a polish with diamond or tin oxide. Adding vinegar to your oxide polish may help produce a better polish. Mohs hardness 3.

Rainbow Calcite Rough - $3.50/pound
Locality: Chihuahua, Mexico
Only $2.50/lb. for Bulk Orders
over 100 pounds.
Only $2.00/lb. for Bulk Orders
over 500 pounds.


Sample of Rainbow Calcite rough.

When cut parallel to the bands,
you can cut bulls eye cabochons
like the example above.

Sample Rainbow Calcite cabochon.


Sample Rainbow Calcite bear carving.
Item Number
Description
Weight
Price
Rainbow Calcite#1
 Triangular shape measures approximately 5" x 3-1/2" to 1-1/4" x 3-1/4 to1-1/2".
4.40 pounds
$15.40
Rainbow Calcite#2
 Trianglular shape measures approximately 5" x 4-3/4" x 3-1/2" thick.
6.45 pounds
$22.58
Rainbow Calcite#3
 Measures approximately 6-1/2" x 4-1/2" x 2-1/2" thick
5.83 pounds
$20.41
Rainbow Calcite#4
 Triangular shape measures approximately 9" x 5" to a point x 3-1/2" to 2".
11.35 pounds
$39.73
Rainbow Calcite#5
 Measures approximately 3-3/4" x 4-1/2" x 3" to 2" thick. SOLD
3.85 pounds
$13.48
Rainbow Calcite#6
 Measures approximately 6" x 5" x 3" thick. SOLD
6.40 pounds
$22.40
Rainbow Calcite#7
Measures approximately 5" x 4" x 1-3/4". SOLD
3.03 pounds
$10.61
Rainbow Calcite#8
 Measures approximately 5" x 5" x 4" at a peak.
4.95 pounds
$17.33
Rainbow Calcite#9
 Measures approximately 3-1/2" x 5-1/2" x 3-1/2".
7.08 pounds
$24.78
Rainbow Calcite#10
Triangular shape approximately 5" x 4-1/2" to a point x 3-1/ 2".
6.55 pounds
$22.93
We also have SLABS of this material.
Agate   Alunite   Angelite   Assortments   Astrophyllite   Aventurine   Blue Willow Stone   Calcite   Chalcedony   Chrysocolla   Chrysoprase   Coral (Fossilized)   Dinosaur Bone   Dinosaur Dung (Coprolite)   Dolomite   Eudialite   Fossil Shell (Coquinite)   Goldstone   Graphic Stone   Hypersthene (Bronzite)   Indian Paint Rock   Jade   Jasper   Lapis Lazuli   Larimar   Lepidolite   Malachite   Marble   Obsidian   Petrified Wood   Pipestone   Printstone   Psilomelane   Quartz   Rainbow Pyrite   Rhodonite   Rhyolite   Ruby-in-Fuchsite   Seraphinite (Clinoclore)   Serpentine   Shell   Soapstone   Sodalite   Tiger Eye   Todolite   Tumbling Rough   Turquoise   Unakite  
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