pycniten.

Brit.

/ˈpɪknʌɪt/, U.S.

/ˈpɪkˌnaɪt/

Forms: 1800s pyknite, 1800s– pycnite.

Origin: A borrowing from French. Etymon: French pycnite.

Etymology: < French pycnite ( R. J. Haüy Traité de minéralogie (1801) III. 239) < pycno- pycno- comb. form + -ite -ite suffix¹.

Mineralogy. Now rare.

An off-white to lemon yellow variety of topaz occurring in columnar aggregations.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > subsaturate group > topaz

gold stone1626

schorlite1794

pycnite1802

physalite1819

topaz1888

1802 Philos. Trans. (Royal Soc.) 92 321 The stone called schorlartiger beryl by Werner (the pycnite of the Abbé Hauy).

1842 T. Graham Elements Chem. ii. v. 515 Fluoride of aluminum [sic] exists in two crystalline minerals... They are, with their formulæ after Berzelius:..Pyknite..3(Al₂O₃, SiO₃) + Al₂F₃.

1866 P. H. Lawrence tr. B. von Cotta Rocks Classified i. i. 35 Pycnite is a fibrous variety of topaz.

1987 Chemie der Erde 47 294 (title) Trace elements in the minerals of the Altenberg pycnite rock.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	pycnite
释义	pycniten. Brit. /ˈpɪknʌɪt/, U.S. /ˈpɪkˌnaɪt/ Forms: 1800s pyknite, 1800s– pycnite. Origin: A borrowing from French. Etymon: French pycnite. Etymology: < French pycnite ( R. J. Haüy Traité de minéralogie (1801) III. 239) < pycno- pycno- comb. form + -ite -ite suffix¹. Mineralogy. Now rare. An off-white to lemon yellow variety of topaz occurring in columnar aggregations. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > subsaturate group > topaz gold stone1626 schorlite1794 pycnite1802 physalite1819 topaz1888 1802 Philos. Trans. (Royal Soc.) 92 321 The stone called schorlartiger beryl by Werner (the pycnite of the Abbé Hauy). 1842 T. Graham Elements Chem. ii. v. 515 Fluoride of aluminum [sic] exists in two crystalline minerals... They are, with their formulæ after Berzelius:..Pyknite..3(Al₂O₃, SiO₃) + Al₂F₃. 1866 P. H. Lawrence tr. B. von Cotta Rocks Classified i. i. 35 Pycnite is a fibrous variety of topaz. 1987 Chemie der Erde 47 294 (title) Trace elements in the minerals of the Altenberg pycnite rock. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1802
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