Sugilite
A variety of Osumilite Group
What is Sugilite?
Rarely found and often massive in size, the purple mineral known as sugilite was only recently brought to human attention, having been categorized in 1944. It is often mispronounced with a soft G, although the person for whom it is named, Japanese petrologist Ken-ichi Sugi, pronounced his name with a hard G.
Etymology & Origins
The mineral is commonly pronounced with a soft "g", as in "ginger". However, as with most minerals, its pronunciation is intended to be the same as the person it is named after; in this case, the Japanese name Sugi has a hard "g", as in "geese".
Uses & Applications
Sugilite has an extremely wide variety of applications. Uses include oxidation-reduction chemical processes, blast furnace production of foundry iron, production of phosphorus, non-stick paint, electrically conductive asphalt, etc. Sugilite is also used as a black paint pigment, polymer filler, and as a part of drinking water or sewage treatments. The potential for use in nanotechnologies is being explored.
Healing Properties
Sugilite is often referred to as the "premier love stone" because it is believed to strengthen the bond in a loving relationship. It can be used on the Crown chakra to connect the person with spiritual love and wisdom. It also works on the Third Eye chakra to enhance psychic abilities and may help in alleviating headaches.
Optical Properties
- Refractive Index
- 1.607-1.612
- Birefringence
- 0.003-0.005
- Pleochroism
- Weak
- Optical Character
- Uniaxial negative
Discover Values
This stone excels in rarity.
Sugilite Market Value Calculator
Estimate the market value of Sugilite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Sugilite Localities Map
See where Sugilite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Associated Chakras
Quick Facts
Physical Properties
- Color
- Purple, violet, light brownish-yellow, colourless in transmitted light
- Hardness (Mohs)
- 6 - 6.5
- Density
- 2.8 g/cm³
- Streak
- White
- Luster
- Vitreous
- Crystal System
- Hexagonal
Chemical Properties
- Chemical Formula
- KNa2Fe3+2(Li3Si12)O30
- Elements
- Fe, K, Li, Na, O, Si
Also Known As
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