The stone lets out a chemical called calcite which means that the building stays white even when exposed to the elements. From Wordnik.com. [EzineArticles] Reference
Another form of calcite which is to be sparingly found is what is called dogtooth spar, having the form shown in Fig. 4. From Wordnik.com. [Scientific American Supplement, No. 344, August 5, 1882] Reference
The modes of occurrence of calcite are very varied. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
Marble when pure is made up of minute calcite crystals. From Wordnik.com. [An Elementary Study of Chemistry] Reference
In a small, brass tube is fixed a double-image prism of calcite or. From Wordnik.com. [The Chemistry, Properties and Tests of Precious Stones] Reference
In the form of stalactites calcite is of extremely common occurrence. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
Left, calcite deposits are removed from the Aphrodite statue's surface. From Wordnik.com. [Interactive Dig Sagalassos - Statue Conservation Report 4] Reference
A stalagmitic calcite of a beautiful purple colour, from Reichelsdorf in. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
Spectacular calcite deposits are a major feature of many of these caves. From Wordnik.com. [Wulingyuan Scenic and Historic Interest Area, China] Reference
Some common carbonate minerals include calcite, dolomite, and malachite. From Wordnik.com. [Composition of rocks] Reference
(Iceland spar or clear calcite), when the mark is doubled and two appear. From Wordnik.com. [The Chemistry, Properties and Tests of Precious Stones] Reference
The fracture being at perfect right angles, distinguishes it from calcite. From Wordnik.com. [Scientific American Supplement, No. 344, August 5, 1882] Reference
Chemically, calcite has the same composition as the orthorhombic aragonite. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
Veins and cavities in limestones are usually lined with crystals of calcite. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
The matrix contains lime as is seen in the large amount of calcite that exists. From Wordnik.com. [The Incomparable 29th and the "River Clyde"] Reference
Calcium carbonate may crystallize in either of two forms, calcite or aragonite. From Wordnik.com. [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference
Aragonite is the least stable form; crystals have been found altered to calcite. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
It is rhombohedral in crystallization and isomorphous with calcite and chalybite. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
It occurs embedded in or incrusting the trap, and also with calcite and apopholite. From Wordnik.com. [Scientific American Supplement, No. 344, August 5, 1882] Reference
The density of the globules (2.58) is similar to that of ordinary varieties of calcite. From Wordnik.com. [Scientific American Supplement, No. 286, June 25, 1881] Reference
Much of the rock is covered with white calcite deposits that make for excellent climbing. From Wordnik.com. [Climbing Towers Built by Nature] Reference
The cleavage is of great help in distinguishing calcite from other minerals of similar appearance. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
Thin veins or fins of calcite cut across the sandstone, adding another dimension to the landscape. From Wordnik.com. [Proclamation On Vermillion Cliffs National Monument] Reference
The ores of calcite first mentioned are very conspicuous, they being white in the dense black rock. From Wordnik.com. [Scientific American Supplement, No. 344, August 5, 1882] Reference
Localities at which beautifully crystallized specimens of calcite are found are extremely numerous. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
It crystallizes in similar form to calcite, and in both cases thin plates obtained by cleavage may be used. From Wordnik.com. [Scientific American Supplement, No. 441, June 14, 1884.] Reference
Those stones which show electricity on the application of pressure are such as the fluorspar, calcite, and topaz. From Wordnik.com. [The Chemistry, Properties and Tests of Precious Stones] Reference
Transparent calcite, a mineral commonly called "Iceland spar," is found, one mine of which furnishes an excellent quality. From Wordnik.com. [Wealth of the World's Waste Places and Oceania] Reference
Only very occasionally has calcite from any locality other than Iceland been used for the construction of a Nicol's prism. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
Datholite is also very characteristic in appearance, and can only be confounded with some forms of calcite occurring near it. From Wordnik.com. [Scientific American Supplement, No. 344, August 5, 1882] Reference
I seemed to look up and so clearly visualized those icicles hanging like stalactites from a flat-roofed cave, in white calcite. From Wordnik.com. [The Book of the Damned] Reference
It occurs in a number of localities as magnesite, which is usually amorphous, but sometimes forms pure crystals resembling calcite. From Wordnik.com. [An Elementary Study of Chemistry] Reference
In addition to the varieties of calcite noted above, some others, depending on the state of aggregation of the material, are distinguished. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"] Reference
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