Ametrine
A species of Quartz, Also known as Trystine, Amethyst-Citrine Scientific name : Ametrine Mineral : Quartz
Ametrine, A species of Quartz
Also known as:
Trystine, Amethyst-Citrine
Scientific name: Ametrine
Mineral: Quartz
Content
Description People often ask General Info
Description
A naturally occurring variety of quartz, ametrine is a popular commercial mineral mined primarily in Bolivia and sold by the trade name of bolivianite. Prized for its gradient colors and toughness, it is regularly used in the jewelry industry. According to a legend, this mineral was first introduced in Europe in the 17th century, as a conquistador's gift to the Spanish queen.
Physical Properties
Colors
Violet, yellow, purple, orange
Luster
Vitreous
Diaphaneity
TransparentToTranslucent
Refractive Index
1.544-1.553
Birefringence
0.009
Pleochroism
Weakly dichroic
Dispersion
0.013
Optical Character
Biaxial positive
Chemical Properties
Chemical Classification
Silicates
Formula
SiO2
Elements listed
O, Si
Common Impurities
Iron
People often ask
General Info
Healing Properties
If your mind's filled with worry, ametrine may benefit you, as it's said to calm the mind by actively removing tension from the psyche. The belief is that this stone stabilizes emotions, allowing you to live a more peaceful internal life. Ametrine is said to improve physical health through boosting immune system and autonomic nervous system function.
How to Select
The boldness of ametrine's bi-colored tones of amethyst and citrine quartz is the highest determinant of its quality. Due to its natural occurrence in large sizes, its value is increased more by the cut and color separation rather than size. Lab-grown dupes of the ametrine can sometimes be identified by the presence of a larger range of colors, such as green and blue. However, heating natural amethyst can turn it to citrine, so man-made effects are quite easily accomplished. Buyers may consider requesting a certificate of chemical analysis to distinguish a lab-enhanced ametrine from a naturally-occurring one.
Usage
Ametrine makes for a fascinating cut gemstone, although it has only become popular as a jewelry stone in the past few decades. This stone is so distinctive that new methods of cutting it have been developed to make the most of its two-color appeal as a faceted stone. It is used in settings for large gemstones such as drop earrings, pendants, and heavy rings.
Composition
Silicon dioxide
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