Danburite

Danburite
Danburite 35x28x21cm
General
Category	Tectosilicates
Chemical formula	CaB2(SiO4)2

Danburite is a crystalline mineral similar to topaz.

Its chemical formula is CaB₂(SiO₄)₂. It has a Mohs hardness of 7 to 7.5 and a specific gravity of 3.0. The mineral has an orthorhombic crystal form. It is usually colourless, like quartz, but can be also either pale yellow, yellowish-brown, or pink. It typically occurs in contact metamorphic rocks.

It is named for Danbury, Connecticut, United States where it was first discovered in 1839 by Charles Upham Shephard.

Danburite from Mexico, ~ 4 cm in height

References

• Mineral galleries
• Webmineral data

This article about a specific silicate mineral is a stub. You can help Wikipedia by expanding it.v · Categories: Calcium minerals Tectosilicates Orthorhombic minerals Silicate mineral stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем решить контрольную работу Roberta Vinci Totnes (UK Parliament constituency) Look at other dictionaries: Danburite — Catégorie IX : silicates[1] Danburite San Sebastian Mexique (35x28x21 cm) …   Wikipédia en Français Danburite — Dan bu*rite, n. (Min.) A borosilicate of lime, first found at Danbury, Conn. It is near the topaz in form. Dana. [1913 Webster] …   The Collaborative International Dictionary of English danburite — ● danburite nom féminin (de Danbury, nom propre) Borosilicate naturel de calcium (CaB2Si2O8) …   Encyclopédie Universelle danburite — danburitas statusas T sritis chemija apibrėžtis Mineralas. formulė Ca[B₂Si₂O₈] atitikmenys: angl. danburite rus. данбурит …   Chemijos terminų aiškinamasis žodynas danburite — /dan beuh ruyt /, n. a rare mineral, calcium borosilicate, CaB2Si2O8, occurring in pegmatite in yellow or colorless crystals resembling topaz. [Amer.; after DANBURY, where it was discovered in 1839; see ITE1] * * * …   Universalium danburite — noun A crystalline mineral similar to topaz …   Wiktionary danburite — dan·bur·ite …   English syllables danburite — ˈdanbəˌrīt noun ( s) Etymology: Danbury, Conn., its locality + English ite : a mineral CaB2(SiO4)2 consisting of a calcium borosilicate that is transparent to translucent and in crystal habit resembles topaz …   Useful english dictionary Codename: Sailor V — Sailor V redirects here. This article is about the manga in general. For the title character, see Sailor Venus. Codename: Sailor V Codename: Sailor V (Book 2 cover) コードネームはセーラーV …   Wikipedia Danburit — Danburitstufe aus Charcas, Mun. de Charcas, San Luis Potosí, Mexiko (Größe: 9,9 x 7,9 x 7,5 cm) Chemische Formel Ca[B2Si2O8][1] M …   Deutsch Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”