Lavender Jade
Crystal Encyclopedia
Lavender Jade, a rare and enchanting variety of jade, is highly valued for its soft, purple hues. It primarily belongs to the jadeite family, one of the two types of jade (the other being nephrite). Lavender jade is cherished for both its aesthetic beauty…
Purple Tiger Eye
Crystal Encyclopedia
Purple Tiger Eye, also known as Purple Tiger's Eye, is a strikingly beautiful gemstone variant of the traditional Tiger Eye. It is not a naturally occurring color but rather results from a heat treatment or dyeing process applied to enhance the stone's…
Purple Alunite
Crystal Encyclopedia
Alunite, a common sulfate mineral with the chemical formula KAl3(SO4)2(OH)6, is usually white to grayish in color. However, purple alunite is a rare variation, often prized by collectors for its striking and unique coloration.
Characteristics of Purple…
Scorolite
Crystal Encyclopedia
Scorolite is a relatively rare mineral belonging to the arsenate mineral group. Its chemical formula is CaAl(AsO4)·2H2O, indicating it is a hydrated calcium aluminum arsenate. The mineral is typically formed in the oxidation zones of arsenic-bearing…
Paraíba
Crystal Encyclopedia
Paraíba tourmaline is one of the most sought-after and vibrant varieties of tourmaline, known for its stunning neon blue to greenish-blue colors. This gemstone is highly prized for its rarity, striking appearance, and unique color that is caused by…
Tourmaline
Crystal Encyclopedia, Gem Encyclopedia
Tourmaline, or tourmaline, is a general term for gem-quality tourmaline, and here's a detailed introduction to tourmaline:
chemical composition
Tourmaline has an extremely complex chemical composition and is a boron-containing silicate with the…
How can I tell the difference between natural and synthetic quartz gemstones?
Crystal Encyclopedia
Examination of Inclusions
Natural Quartz:
Inclusions in natural quartz are often diverse and irregular, reflecting the complex geological processes during its formation. They can include tiny gas bubbles, liquid inclusions (such as water or other…
Are there any synthetic quartz gemstones that are similar in appearance to natural quartz?
Crystal Encyclopedia
Yes, there are synthetic quartz gemstones that closely resemble natural quartz in appearance. Here's a detailed look at them:
Types and Their Similarities
Synthetic Amethyst:
Appearance: It mimics the purple color of natural amethyst quite well.…
Can natural quartz be used in the jewelry industry?
Crystal Encyclopedia
Yes, natural quartz is widely used in the jewelry industry for several reasons:
Types of Quartz Used in Jewelry
Amethyst:
This purple variety of quartz is one of the most popular gemstones in the jewelry world. Its color ranges from a delicate…
What is the difference between natural quartz and synthetic quartz?
Crystal Encyclopedia
Natural quartz and synthetic quartz have several differences in aspects such as formation process, physical and chemical properties, appearance, and value. Here's a detailed comparison:
Formation Process
Natural Quartz:
Forms over long periods…
What are the different colors of natural quartz?
Crystal Encyclopedia
Natural quartz comes in a wide range of colors, which can be attributed to the presence of trace minerals, inclusions, or structural imperfections within the crystal. Here are the most common colors of natural quartz:
1. Clear Quartz (Rock Crystal)
Color:…
What are the physical and chemical properties of natural quartz?
Crystal Encyclopedia
Physical Properties
Hardness: Quartz has a Mohs hardness of 7, which means it is relatively hard and can scratch most common materials. It is harder than materials like feldspar and calcite, and is comparable in hardness to topaz123.
Crystal Structure:…