Prehnite definitions

Prehnite

1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel 7) Jewel mineral 8) Mineral gemstone 9) Mineral jewel 10) Polished mineral 11) Polished jewel 12) Precious gem 13) Prized stone 14) Precious stone 15) Precious jewel 16) Precious gemstone 17) Prized mineral
Found on https://www.crosswordclues.com/clue/prehnite

---

Prehnite

Prehnite is a inosilicate of calcium and aluminium with the formula: Ca2Al(AlSi3O10)(OH)2. Limited Fe3+ substitutes for aluminium in the structure. Prehnite crystallizes in the orthorhombic crystal system, and most oftens forms as stalactitic or botryoidal aggregates, with only just the crests of small crystals showing any faces, which are almost ...
Found on http://en.wikipedia.org/wiki/Prehnite

---

Prehnite

• (n.) A pale green mineral occurring in crystalline aggregates having a botryoidal or mammillary structure, and rarely in distinct crystals. It is a hydrous silicate of alumina and lime.
Found on http://thinkexist.com/dictionary/meaning/prehnite/

---

prehnite

pale green to gray, glassy silicate mineral that commonly lines cavities in igneous rocks. It also occurs as stalactite masses. Prehnite is a ...
Found on http://www.britannica.com/eb/a-z/p/108

---

Prehnite

Prehn'ite noun [ So called from the German Colonel Prehn , who first found it.] (Min.) A pale green mineral occurring in crystalline aggregates having a botryoidal or mammillary structure, and rarely in distinct crystals. It is a hydrous silicate of alumina and lime.
Found on http://www.encyclo.co.uk/webster/P/149

---

Prehnite

Prehnite is a mineral named after Colonel Hendrick Von Prehn who first discovered it at the Cape of Good Hope in South Africa. It was confirmed as a distinct species of mineral in 1788. Prehnite is a hydrous silicate of calcium and aluminium with the formulae Ca2Al2Si3O10(OH)2 and a relative hardness of 6 to 7. Prehnite occurs as a crusty lining in...
Found on http://www.probertencyclopaedia.com/browse/HP.HTM

---

Prehnite

(Calcium Aluminum Silicate Hydroxide) Prehnite was named after its discoverer; Colonel Hendrik von Prehn and is an attractive collection mineral that is occassionally used for ornamental stone purposes. Its color is usually a pleasant green and is at times quite unique to prehnite. Typical prehnite forms rather thick crusts with...
Found on https://www.encyclo.co.uk/local/23719

---

prehnite

a mineral, hydrous calcium aluminum silicate, CaAlSiO(OH), occurring in light-green reniform aggregates or tabular crystals.
Found on https://www.infoplease.com/dictionary/prehnite

---