▲▲▲ Amethyst Geological Properties
Amethyst is a naturally-occurring macrocrystalline (meaning large crystal formations) variety of quartz that usually grows on the inside of agate geodes. Geodes containing amethyst crystals are formed when clay, silt, sand or gravel are deposited and compacted by running water. While the crystals themselves may grow to be several inches, the geodes containing the amethyst crystals often reach several feet in height. Some of the largest amethyst geodes have been found in Brazil.
This majestic gemstone gets its color from the presence of manganese and/or iron. Amethyst can also appear reddish-purple or yellow-purple depending on the combination of minerals present in the clear quartz. Were amethyst less abundant, it would be even more highly-prized--and expensive!
Mineral Information Crystalline: Quartz
Chemical Composition: SiO2
Color: Purple, violet, red-violet
Hardness: 7 (Mohs)
Specific Gravity: 2.66
Refractive Index: 1.544 - 1.553
Cause of Color: Manganese and iron
▲▲▲ Customers can select a variation of closure.
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▲▲▲ Hand working process.
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▲▲▲ Shipping World Wide :
- Please allow us to prepare the item and parcel between 1-3 working days.
- All items will be sent by Thai Registered Airmail. The delivery usually takes about 10 - 15 working days for parcel to arrive in most countries.
▲▲▲ Your item will come with our gift bag.
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▲▲▲ Care Instructions for brass :
- Prolonged exposure of brass to water may lead to oxidation and discoloration.
- If brass becomes tarnished as a result of discoloration or oxidation, please use a dry cloth and wipe the jewelry with an acidic solution and put it into a sealed bag. This should restore luster to the brass.
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