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Updated: June 18, 2025
He also obtained specimens of the bamboo with the tabasheer in situ.
Russell found that the bamboos which produce tabasheer often contain a fluid, usually clear, transparent, and colorless or of greenish tint, but sometimes thicker and of a white color, and at other times darker and of the consistency of honey. Occasionally the thicker varieties were found passing into a solid state, and forming tabasheer. Dr.
A knowledge of the substance was introduced into Western Europe by the Arabian physicians, and the name by which the substance is generally known is said to be of Arabic origin. Much of the material which under the name of "tabasheer" finds its way to Syria and Turkey is said, however, to be fictitious or adulterated. In 1788 Dr.
This stone is said to have been so hard as to cut glass, and to have been in parts of a crystalline structure. Its behavior with reagents was found to be different in many respects from that of the ordinary tabasheer; and it was proved to contain silica and iron. There may be some doubt as to whether this specimen was really of the nature of tabasheer.
If such were the case, it would seem to have been a tabasheer in which a crystalline structure had begun to be set up. It was procured from a species of bamboo growing on the west of Pichincha, and is described as being of a milk white color, in part apparently crystalline in structure, and in part semi-transparent and gelatinous.
His determinations of the specific gravities of different varieties were as follows: Chalky tabasheer. 2.189 Translucent tabasheer. 2.167 Transparent tabasheer. 2.160 The results obtained were as follows: Loss at 100° C. Loss at red heat. Chalky tabasheer. 0.838 per cent. 1.277 per cent. Translucent tabasheer. 1.620 " " 3.840 " " Transparent tabasheer. 2.411 " " 4.518 " " Dr.
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