Chert: Identification, Pictures & Info for Rockhounds
WEBChert is a biochemical sedimentary rock made from microcrystalline quartz. It is very hard – registering a 7 on the Mohs hardness scale, and displays conchoidal fracturing. Chert can almost any color, but is usually gray, brown, red, or green. It has many subvarieties including flint, jasper, agate, and onyx.
Channeling a Mother Rock: Chert | Rock & Gem Magazine
WEBJul 29, 2021 · During a November 2018 field trip to the Payson area of Arizona, we collected pink jasper nodules and the boldly banded chert known by local area rockhounds as “Zebra Stone.” These sedimentary and igneous mixtures of weather-resistant minerals form a rugged topography of gravel sediments that …
Chert
WEBOutcrop of massive chert, near the SE shore of Lake Magadi, Kenya (1986). The chert originates as sodium silicate gel, which crystallizes to ephemeral minerals such as magadiite, that subsequently dehydrate to chert. The resulting decrease in volume produces a collapse breccia with chaotic textures.
Winterset Chert - Projectile Points
WEBColor: Winterset Chert is primarily homogenous, but may range to mottled or layered with colors ranging from a light to dark gray or brownish gray which tends to be opaque. Commonly has a "zebra striped" appearance. Texture: Very fine grain. Luster: Dull to waxy.
Missouri Licthic Materials - Projectile Points
WEBNortheastern Missouri. Penters Chert AKA: Pinters Chert. Ranges from a highly variegated ranging from medium to dark gray, bluish gray, grayish brown, or mottled ranging white to pale gray or pale brown. Southwestern Missouri.
Zebra Stone Gemstone: Properties, Meanings, Value & More
WEBMay 16, 2018 · Zebra stone (also called zebra rock or zebra jasper) is an opaque chalcedony whose name alludes to its distinctive, zebra-like stripes. Known as the “Stone of Being,” zebra jasper is a healing stone symbolic of grounding, protection, and balance.
Chert - Wikipedia
WEBChert (/ tʃɜːrt /) is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, [1] the mineral form of silicon dioxide (SiO 2). [2] . Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood. [3]
Gallery of Chert Rocks and Gemstones - ThoughtCo
WEBJan 8, 2020 · Chert is a distinct rock type that comes in many different variations and shades of colors, including some familiar gemstones.
Zebra Stone - projectilepoints.net
WEBZebra Stone occurs in the Pine-Payson Mogollon Rim wilderness area and along Christopher Creek, Arizona.
Chert - Sedimentary Rocks - Sandatlas
WEBChert is a hard and compact sedimentary rock, consisting dominantly of very small quartz crystals. It is a common rock type which occurs mostly in carbonate rocks either in nodular form or in layers (bedded chert).
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