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The red jasper may resemble spots of blood, hence the name bloodstone. Other colors of chalcedony may also occur in Indian bloodstone, such as white, yellow, or blue. This semiprecious stone should not be confused with other ornamental stones that contain red jasper.
Jasper is the main component in the silica-rich parts of banded iron formations (BIFs) which indicate low, but present, amounts of dissolved oxygen in the water such as during the Great Oxidation Event or snowball earths. [16] The red bands are microcrystalline red chert, also called jasper.
Red Jasper is the third stone in the third row of the priestly breastplate, representing the tribe of Issachar (Exodus 28:19, [2] 39:12 [3]); the Septuagint enumerates it among the riches of the King of Tyre (Ezekiel 28:13 [4]). Jasper is an anhydrate quartz composed of silica, alumina, and iron and there are jaspers of nearly every color ...
Orbicular jasper from Madagascar. Orbicular jasper is a variety of jasper which contains variably-colored orbs or spherical inclusions or zones. In highly silicified rhyolite or tuff, quartz and feldspar crystallize in radial aggregates of needle-like crystals which provide the basis or seed for the orbicular structure seen in this kind of jasper. [1]
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The jasper conglomerate occurs on St. Joseph Island and the St. Mary's River area north and northwest of the Bruce Mines of Northern Ontario, about 65 kilometres (40 mi) east of Sault Ste. Marie. This conglomerate consisted originally of gravelly sands and sandy gravels composed of subrounded pebbles of red jasper, white quartzite , semi ...
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Biggs jasper is a variety of the mineral jasper. It is a "picture jasper" – a jasper that exhibits particular patterns and colors – and is used as an opaque gemstone . [ 1 ] It exhibits intricate, shell- or layer-like patterns in shades of brown ranging from beige to dark brown.