▲▲▲ Black Silk Stone Geological Properties
Onyx is a form of chalcedony, which is microcrystalline quartz formed in the gas cavities of lava. Its multi-layered structure is similar to that of agates. As with any onyx, black silk stone is found worldwide.
Mineral Information: Oxide mineral
Chemical Composition: SiO2
Color: Opaque-gray / black
Hardness: 4 (Mohs)
Specific Gravity: 2.70
Refractive Index: 1.486 - 1.658
▲▲▲ Customers can select a variation of closure.
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▲▲▲ Your item will come with our gift bag.
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▲▲▲ Shipping World Wide :
- Please allow us to prepare the item and parcel between 1-5 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.
Product Description
Product Details
- Material
- Copper & Brass
- How It's Made
- Handmade
- Where It's Made
- Thailand
- Unique Features
- Pinkoi Exclusive
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- Down to the last 2
- Ranking
- No.344,648 - Accessories | No.76,178 - Earrings & Clip-ons
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- 3,118 views
- 1 sold
- 12 have saved this item
- Product Type
- Original Design
- Listing Summary
- dimension : 1 x 5.5 cm. material : Natural stone 1 mm. / brass rod parts closure : brass /nickel free
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