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单词 heavy spar
释义

heavy sparn.

Etymology: translation of German Schwerspat, the name given by Werner in 1774.
The native sulphate of barium, barytes; also improperly applied to barium carbonate, and sometimes to the sulphate and carbonate of strontia (Page Handbk. Geol. Terms).
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the world > the earth > minerals > types of mineral > sulphates > [noun] > barium sulphate
liverstone1587
ponderous spar1618
cauk1653
cawk1653
ponderous earth1780
baroselenite1786
barytes1789
heavy spar1789
terra ponderosa1794
hepatite1802
allomorphite1842
the world > the earth > minerals > types of mineral > carbonates > [noun] > orthorhombic > witherite
heavy spar1789
barolite1794
witherite1794
1789 A. Crawford in Med. Communications 2 353 The muriated barytes..was obtained by the decomposition of the heavy spar.
1789 A. Crawford in Med. Communications 2 356 Heavy spar from the lead mines of Derbyshire.
1816 R. Jameson Treat. External Characters Minerals (ed. 2) 106 Heavy spar, and actynolite afford examples of it [sc. the hexahedral prism].
1845 J. C. Atkinson in Hist. Berwickshire Naturalists' Club 2 No. 13. 137 It is calc-spar, in a setting of heavy-spar or sulphate of baryta.
1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 903 The septaria of Durham..have the veinings lined with brown heavy spar.
This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2018).
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