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quartz

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quartz

quartz   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
40 words

a colourless, often transparent, glassy form of silica, SiO2, used in optical devices and cuvettes because of its ...

quartz and related minerals

quartz and related minerals   Reference library

The Oxford Companion to the Earth

Reference type:
Subject Reference
Current Version:
2003

α-Quartz, β-quartz, tridymite, cristobalite, coesite, and stishovite are all polymorphs of silicon dioxide or silica (SiO2); they have ...

quartz

quartz   Quick reference

World Encyclopedia

Reference type:
Subject Reference
Current Version:
2004
Subject:
Encyclopedias
Length:
100 words

Rock-forming mineral, the natural form of silicon dioxide (silica), SiO2. It is widely distributed, occurring in igneous and ...

quartz

quartz   Quick reference

The Concise Oxford Dictionary of Archaeology (2 ed.)

Reference type:
Subject Reference
Current Version:
2009
Subject:
Archaeology, History
Length:
91 words
[Ma] ... Opaque white crystalline silicate stone found in many parts of the world and variously used for toolmaking and in ceremonial contexts. In Atlantic Europe white quartz ... More
quartz

quartz   Quick reference

The Concise Oxford Dictionary of Art Terms (2 ed.)

Reference type:
Subject Reference
Current Version:
2010
Subject:
Art & Architecture
Length:
60 words

A mineral form of silica, used since ancient times in sculpture and particularly valued when tinted rose or smoky grey, or when transparent (when it is known as ...

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