Ads
related to: blue quartz beadsetsy.com has been visited by 1M+ users in the past month
- Personalized Gifts
Shop Truly One-Of-A-Kind Items
For Truly One-Of-A-Kind People
- Black-Owned Shops
Discover One-of-a-Kind Creations
From Black Sellers In Our Community
- Free Shipping Orders $35+
On US Orders From The Same Shop.
Participating Shops Only. See Terms
- Star Sellers
Highlighting Bestselling Items From
Some Of Our Exceptional Sellers
- Personalized Gifts
ebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
Egyptian faience is a sintered-quartz ceramic material from Ancient Egypt. The sintering process "covered [the material] with a true vitreous coating" as the quartz underwent vitrification , creating a bright lustre of various colours "usually in a transparent blue or green isotropic glass".
In its final state, Egyptian blue consists of rectangular blue crystals together with unreacted quartz and some glass. From the analysis of a number of samples from Egypt and elsewhere, the weight percentage of the materials used to obtain Egyptian blue in antiquity was determined usually to range within these amounts: [13] 60–70% silica (SiO 2)
Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu Al 6 (PO 4) 4 8 ·4H 2 O.It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.
Tiger's eye (also called tiger eye) is a chatoyant gemstone that is usually a metamorphic rock with a golden to red-brown colour and a silky lustre.As members of the quartz group, tiger's eye and the related blue-coloured mineral hawk's eye gain their silky, lustrous appearance from the parallel intergrowth of quartz crystals and altered amphibole fibres that have mostly turned into limonite.
Chalcedony's standard chemical structure (based on the chemical structure of quartz) is SiO 2 (silicon dioxide). Chalcedony has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black.
A string of blue faience beads from north Lisht, a village in the Memphite region of Egypt, c. 1802–1450 B.C.. The art of creating and utilizing beads is ancient, and ostrich shell beads discovered in Africa can be carbon-dated to 10,000 BC.
Ads
related to: blue quartz beadsetsy.com has been visited by 1M+ users in the past month
ebay.com has been visited by 1M+ users in the past month