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Well polished Natural Carnelian Stone specimen
Weight: 65.4 gram
Sizes: 40x41x26 mm
This stone is from Brazil.
***
Carnelian
Category Chalcedony variety
Chemical formula Silica (silicon dioxide, SiO2)
Molar mass 60 g / mol
Color Brownish-red
Crystal system Trigonal
Cleavage Absent
Fracture Uneven, splintery, conchoidal
Mohs scale hardness 6 - 7
Luster Vitreous, dull, greasy, silky
Streak White
Diaphaneity Translucent
Specific gravity 2.59 - 2.61
Carnelian, also called cornelian, a translucent, brownish-red, semiprecious variety of the silica mineral chalcedony that owes its red to reddish brown colour to colloidally dispersed hematite (iron oxide). It is a close relative of sard, differing only in the shade of red. Carnelian was highly valued and used in rings and signets by the Greeks and Romans, some of whose intaglios have retained their high polish better than many harder stones. Carnelian’s colour is enhanced by baking and dyeing with iron salts. Chief localities are Ratnapura, India; Campo de Maia, Braz.; and Warwick, Queens., Austl. Its physical properties are those of quartz.
Stones may be uniformly colored or faintly banded. The best carnelian is from India, where it is placed in the sun to change from brown to tints to red. Most carnelian on the market is stained chalcedony from Brazil or Uruguay.
Item Specifics | |
---|---|
Total Carat Weight (TCW) : | 327 |
Modified Item : | No |
Country/Region of Manufacture : | China |
Transparency : | Opaque |
Natural/Lab-Created : | Natural |
Country of Origin : | Brazil |
Cut Grade : | Good |
Brand : | Unbranded |
Length : | 40mm |
Width : | 41mm |
Depth : | 26mm |
Gemstone Type : | Carnelian |
Gemstone Color : | Red |
Gemstone Creation : | Natural |
Gemstone Form : | Polished |
Gemstone Treatment : | Not Enhanced |
Gemstone Clarity Grade : | Eye Clean |
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We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery.
We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery.
Returns: We accept returns with any reason in 30 days.
We will answer buyer messages within 24 hours during working days.
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Well Polished Carnelian Stone Specimen 65.4 gram 40x41x26 mm
Well polished Natural Carnelian Stone specimen
Weight: 65.4 gram
Sizes: 40x41x26 mm
This stone is from Brazil.
*** Carnelian Category Chalcedony variety Chemical formula Silica (silicon dioxide, SiO2) Molar mass 60 g / mol Color Brownish-red Crystal system Trigonal Cleavage Absent Fracture Uneven, splintery, conchoidal Mohs scale hardness 6 - 7 Luster Vitreous, dull, greasy, silky Streak White Diaphaneity Translucent Specific gravity 2.59 - 2.61 Carnelian, also called cornelian, a translucent, brownish-red, semiprecious variety of the silica mineral chalcedony that owes its red to reddish brown colour to colloidally dispersed hematite (iron oxide). It is a close relative of sard, differing only in the shade of red. Carnelian was highly valued and used in rings and signets by the Greeks and Romans, some of whose intaglios have retained their high polish better than many harder stones. Carnelian’s colour is enhanced by baking and dyeing with iron salts. Chief localities are Ratnapura, India; Campo de Maia, Braz.; and Warwick, Queens., Austl. Its physical properties are those of quartz. Stones may be uniformly colored or faintly banded. The best carnelian is from India, where it is placed in the sun to change from brown to tints to red. Most carnelian on the market is stained chalcedony from Brazil or Uruguay.
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By Paypal Shipping
Free shipping cost. We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery. We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery. Returns
Returns: We accept returns with any reason in 30 days. Contact Us
We will answer buyer messages within 24 hours during working days. All right reserved. |
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