Parisite Value, Price, and Jewelry Information

Rob Lavinsky, iRocks.com – CC-BY-SA-3.0 [CC-BY-SA-3.0], via Wikimedia Commons

Parisite

An overview on Parisite Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Parisite gemstones

Parisite Information

Data Value
Name Parisite
Stone Sizes Parisite is a rare mineral, and crystals are usually very small. Tiny faceted stones (all under 1 carat) have been cut from Montana material.
Formula Ca(Ce,La)2(CO3)3F2.
Colors Brownish yellow, brown, grayish yellow.
Fracture Subconchoidal to splintery
Hardness 4.5
Cleavage Distinct basal parting or cleavage; perhaps due to alteration
Crystallography Hexagonal; crystals double hexagonal pyramids, often steep, sometimes prismatic, striated; sometimes rhombohedral.
Refractive Index 1.676-1.757
Birefringence 0.081
Luminescence Not reported.
Luminescence Present No
Absorption Spectrum Not diagnostic.
Pleochroism Weak.
Optics o = 1.676; = 1.757. Uniaxial (+).
Optic Sign Uniaxial +
Luster Vitreous to resinous; pearly on basal cleavage surfaces.
Specific Gravity 4.36
Transparency Transparent to translucent
Phenomena Asterism (rare)

Optics: o=1.676; e= 1.757.

Uniaxial (+).

Occurrence: In carbonaceous shale beds in the emerald deposits of Muzo, Colombia: also as typical inclusions in emerald crystals. Also in alkali pegmatites in Norway.

Muzo, Colombia.

Langesundsfford, Norway.

Italy; Madagascar; Manchuria.

Quincy, Massachusetts: Ravalli County, Montana.

Name: After J. J. Paris, proprietor of the mine at Muzo where the mineral was first discovered.

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