Olive Opal is a tradename for an olive-green variety of the well-known precious stone called Opal, which is not a true mineral but a hardened silica gel. Olive Opal is mostly mined in Australia, and just like regular Opal, it is used for beads, cabochons, and tumbled stones, but it's rarely cut into faceted gems.
Hardness:
5.5 - 6
Density:
1.98 - 2.25 g/cm³
On This Page
Properties
Health Risk
Values
Market Price
How to Care
Real vs Fake
Characteristics
Cultural
Common Questions
General Info About Olive Opal
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Physical Properties of Olive Opal
Luster
Vitreous, Waxy, Resinous
Diaphaneity
Transparent to translucent
Colors
Green, greenish-yellow, brown
Magnetism
Non-magnetic
Tenacity
Brittle
Cleavage
None
Fracture
Conchoidal, Uneven, Splintery
Streak
White
Crystal System
Amorphous
Hardness
5.5 - 6 , Hard
Density
1.98 - 2.25 g/cm³, Obviously Light Weight
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Chemical Properties of Olive Opal
Chemical Classification
Mineraloid
Idealised Formula
SiO2 · nH2O
Formula
SiO2 · nH2O
Elements listed
H, O, Si
Optical Properties of Olive Opal
Refractive Index
1.37-1.52
Pleochroism
None
Optical Character
Isotropic
Health Risk of Olive Opal
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What is the hazards of Olive Opal?
Quartz, silica, crystalline silica and flint are non-toxic materials, but very fine dust containing quartz, known as respirable crystalline silicon (RCS), can cause serious and fatal lung disease. Lapidaries should exercise caution when cutting silica.
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Rarity
Uncommon
Collection Recommendation
4.2 out of 5
Popularity
3.5
Aesthetic
4.3
Rarity
4.1
Sci-Cultural Value
3.9
The Market Price of Olive Opal
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Rough/Tumbled Price
Smaller Than Hand (0-1.5in)
$1 - $20
Close Hand (1.5-3in)
$20 - $50
Equal To Hand (3-6in)
$50 - $80
Bigger Than Hand (>6in)
$80
How to Care for Olive Opal?
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Durability
Nondurable
Scratch resistance
Poor
Toughness of Olive Opal
Poor
Fair
Good
Excellent
The poor toughness of olive Opal results from its amorphous structure and high water content, making it susceptible to cracking and chipping under stress.
Stability of Olive Opal
Sensitive
Stable
Olive Opal's susceptibility to intense light, extreme dryness, heat, and chemical exposure compromises its integrity for daily use. It requires careful handling to maintain its condition over time.
More Care Tips of Olive Opal
Real vs Fake Olive Opal
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2 Ways to Tell if olive Opal is Real
Fake Alert Level:
Caution Needed
Materials like Glass and plastic are sometimes mistakenly sold as natural olive Opal. It's advisable to buy from reputable retailers and, if possible, request a certificate from a gem testing laboratory for authentication. Here are some handy tips to help you initially discern the authenticity of olive Opal.
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Cultural Significance of Olive Opal
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Healing Properties of Olive Opal
Olive Opal is believed to enhance creativity and originality. It encourages honesty and self-expression. It is considered a protective stone that absorbs negative energy and reflects it back to the source. When placed on the Heart chakra, it is said to release emotional blocks and allow for truer, deeper love connections. It can be worn, carried, or placed in the home.
Common Questions People Also Ask
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