✦ EncyclopediaPublic Domain Research Library

Public Domain Encyclopedia Database

Search the scanned history of knowledge.

Compare encyclopedia entries across editions, inspect page scans, and trace every article back to its source volume.

Try electricity Try telegraph Try astronomy
Limit to sources
5source families
1366article records
1356imported with text

Search results

2 results for “Tetrahedrite”

Results are grouped by encyclopedia. Grouped by encyclopedia. Each record links to article text, topic comparison, and available source evidence.

Source family

Britannica 11th

Encyclopaedia Britannica · 11th edition

2 matches

Tetrahedrite

Britannica 11th

TETRAHEDRITE, a mineral consisting typically of copper sulph-antimonite, CujSbSj, but often of complex composition. The copper is usually isomorphously replaced by variable amounts of silver, iron, zinc, mercury, lead or cobalt, and the antimony by arsenic or ...

Vol. 26, pp. 670-671 OCR text aligned to scanned pages Relevance 330.0
Read article Compare topic Source text

Tetradymite

Britannica 11th

TETRADYMITE, a mineral consisting of bismuth telluride and sulphide, Bi2Te2S, also known as " telluric bismuth." Sometimes sulphur is absent and the formula is then Bi2Tes; traces of selenium are usually present. Crystals are rhombohedral, but are rarely disti

Vol. 26, pp. 670-670 OCR text aligned to scanned pages Relevance 35.22
Read article Compare topic Source text