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Adamantine Spar

Explanation

Adamantine Spar: Adamantine is a mineral, often referred to as adamantine spar. It is a silky brown form of corundum. It has a Mohs rating of 9.

Printed dictionaries and other books with definitions for Adamantine Spar

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Google previewThe Argosy (1871)

by Charles William Wood

Adamantine spar is a common kind of corundum ; and emery, so extensively used in polishing glass and other fine surfaces, is of the same nature. The coloured gems known to the ancients were mostly corundum stones ...

Google previewTransatlantic Magazine (1871)

Containing Choice Selections from Foreign Current Literature

Adamantine spar is a common kind of corundum ; and emery, so extensively used in polishing glass and other line surfaces, is of the same nature. The colored gems known to the ancients were mostly corundum stones; ...

Google previewA Dictionary of the Bible: Red-Sea-Zuzims (1863)

by William Smith

In modern mineralogy the simple term Ada- mant has no technical signification, but Adamantine Spar is a mineral well known, and is closely allied to that which we have good reason for identifying with the Shamir or Adamant of the Bible. That some hard cutting stone is intended can be shown from the passage in Jeremiah quoted above. Moreover the Hebrew root1 (Shamar, " to • It is incorrect to suppose that even the diamond, which is only pore carbon crystallized, is " invincible " by ...

Google previewA Dictionary of Chemistry (1821)

On the Basis of Mr. Nicholson's, in which the Principles of the Science are Investigated Anew and Its Applications to the Phenomena of Nature, Medicine, Mineralogy, Agriculture, and Manufactures Detailed by Andrew Ure

ADAMANTINE SPAR. This stone, which comes to us from the peninsula of Hither India, and also from China, has not engaged the attention of the chemical world till within a few years past. It is remarkable for its extreme hardness, which approaches to that of the diamond, and by virtue of which property it is used for polishing gems. Two varieties of this stone are known in Europe. The first comes from China. It is crystallized, in six-sided prisms, without pyramids, the length of which ...

Google previewLondon Encyclopaedia; Or, Universal Dictionary of Science, Art, Literature and Practical Mechanics (1829)

Comprising a Popular View of the Present State of Knowledge

4°1803, and the true adamantine spar of China gave 3-8222. SPAR, Felt, or FELT-spar, or FElspan, as Dr. Thomson spells it, is called by former mineralogists rhombic quartz, and is the petuntse of the Chinese. See QUARTz and MiNERALooy. SPAR, Ponderous, or terra ponderosa, is now called barytes. See Chemistry, Index, and MiNERALogy. SPARADRAP, n. s. In pharmacy, a cerecloth . With application of the common paradrap for issues, this ulcer was by a fontanel kept open.

Google previewThe Domestic Encyclopedia, Or, A Dictionary of Facts and Useful Knowledge, Chiefly Applicable to Rural & Domestic Economy (1821)

With an Appendix, Containing Additions in Domestic Medicine, and the Veterinary and Culinary Arts by Anthony Florian Madinger Willich

CORUNDUM, or Adamantine Spar, is a very hard and nearly opaque stone, which varies much in colour, but is chiefly grey, with a greenish, brown, or blueish tint It is usually found in the form of a six-sided prism, but sometimes occurs in shapeless masses, has a foliated texture, and is about four times as heavy as Water. The name of adamantine spar ...

Google previewThe Cyclopaedia; Or, Universal Dictionary of Arts, Sciences and Literature (1819)

by Abraham Rees

Adamantine spar is used throughout India and China for the purpose of polishing steel and gems, for which its great...

Google previewA Dictionary of Chemistry, Mineralogy, and Geology (1823)

In Accordance with the Present State of Those Sciences by James Mitchell

ADAMANTINE SPAR. This stone, which comes to us from the peninsula of Hither India, and also from Chima, has not engaged the attemtion of the chemical world till within a few years past. It is remarkable for its extreme hardness, which approaches to that of the diamond, and by virtue of which property it is used for polishing gems. Two varieties of this stone are known in Europe. The first comes from China. It is crystallized in six-sided prisms, without pyramids, the length of which ...

Google previewA Dictionary of practical and theoretical Chemistry ... With plates, etc (1808)

Small crystalline grains of magnetical ferruginous calx are occasionally found in the adamantine spar of China, which may be separated by the magnet when the stone is pulverized. The second variety, which comes from India, is called Corundum by the inhabitants of Bombay. It differs from the former by a white colour, a texture more evidently spathose, and lastly, because the grains of magnetical iron are smaller than in the former specimens, and are not interspersed through its ...

Google previewA Dictionary of Practical and Theoretical Chemistry (1808)

With Its Application to the Arts and Manufactures, and to the Explanation of the Phaenomena of Nature : Including Throughout the Latest Discoveries and the Present State of Knowledge on Those Subjects : with Plates and Tables by William Nicholson

Small crystalline grains of magnetical ferruginous calx are occasionally found in the adamantine spar of China, which may be separated by the magnet when the stone is pulverized. The second variety, which comes from India, is called Corundum by the inhabitants of Bombay. It differs from the former by a white colour, a texture more evidently spathose, and lastly, because the grains of magnetical iron are smaller than in the former specimens, and are not interspersed through its ...

Google previewA Dictionary of Chemistry on the Basis of Mr Nicholson's ... with an Introductory Dissertation (1821)

by Andrew Ure

Small crystalline grains of magnetical ferruginous calx are occasionally found in the adamantine spar of China, which may be separated by the magnet when the stone is pulverized. The second variety, which comes from India, is called Corundum by the inhabitants of Bombay. It differs from the former by a white colour, a texture more evidently spathose, and lastly, because the grains of magnetical iron are smaller than in the former specimens, and are not interspersed through its ...

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