demantoid

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Related to demantoid: andradite

de·man·toid

(dĭ-măn′toid′)

A transparent, green variety of garnet used as a gem.

[German, from archaic Demant, diamond, from Middle High German diemant, from Old French diamant; see diamond.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

demantoid

(dɪˈmæntɔɪd)

(Minerals) a bright green variety of andradite garnet

[C19: from German, from obsolete Demant diamond, from Old French diamant + -oid]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

de•man•toid

(dɪˈmæn tɔɪd)

n.

a brilliant green andradite garnet, used as a gem.

[1890–95; < German, = (obsolete) Demant diamond + -oid -oid]

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Noun

demantoid - a green andradite used as a gemstone

andradite - a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone

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The gold, sapphire, demantoid garnet and enamel dolphin brooch will be auctioned in Birmingham next month.

Rare brooch worth PS8k up at auction

Name 1 Carbuncle 2 K feldspar 3 Albite 4 Tektite 5 Magnetite 6 Demantoid 7 Oolitic hematite 8 Pink pyroxene 9 Idocrase 10 Black hematite 11 Biotite 12 Hornblende 13 Calcite 14 Labradorite 15 Magnesite 16 Rhodonite 17 Reniform hematite 18 Banded siliceous rocks 19 Diopside 20 Selenite 21 Alabaster 22 Anhydrite 23 Moonstone 24 Barite 25 Hypersthene Table 2: Emission lines for classification based on major elements from geological samples.

Classification of Geological Samples Based on Soft Independent Modeling of Class Analogy Using Laser-Induced Breakdown Spectroscopy

So he did what any jeweller looking to make a splash at a world's fair in the Gilded Age might: He made a bedazzled iris corsage the size of an actual iris, with a golden stem and dozens of Montana sapphires and demantoid garnets for the bud.

These perfumes are anything but demure

Dr Ilaria Adamo (Italian Gemmological Institute, Milan) reviewed the geology and gemmology--including origin determination--of demantoid sources.

Gem-A conference and FEEG symposium

Hunterview has been finding it tough going this season but his recent effort at Exeter provides plenty of hope for Kelso's Demantoid Handicap Hurdle (2.35).

Turn on the style

The biggest draw was Victoire de Castellane's colourful large-scale rings and floral necklaces smothered in tourmalines, demantoid garnets and rubies, jewelled counterparts of John Galliano's exuberant designs for Dior.

Set in stone: Diana Scarisbrick applauds a masterful account of the close association between fashion and jewellery

The country primarily produces demantoid garnet, aquamarine, topaz, garnet and is said to have vast quantities of blue-green tourmaline.

Africa--home to world's most wanted minerals: generally speaking there is virtually no mineral that Africa does not have in exploitable quantities but the continent tends to follow its economic nose and root out those that are the money-making flavours of the day. Tom Nevin digs out the story

The most valuable garnets are, in fact, a bright leaf green: demantoid garnets, which were first discovered in the Ural mountains in the 19th Century.

all that glitters..

Stadther later presented them with the actual jewel--a 19th-century piece set with 85 green demantoid garnets and 25 diamonds.

Patience, grasshopper: Pennsylvania music teacher-turned-treasure hunter helps locate a $50,000 antique jewel in a nationwide search

Demantoid garnet is a rare and beautiful bright grass green sub-variety of andradite garnet.Tsavolite, is a bright green variety of grossular garnet, its colour being induced by the presence of chromium.

Sandra's Advice: ARIANS CAN GO GARNET

Roman Serov and co-authors (all from the Gemological Center, Lomonosov Moscow State University, Russia) examined the colour origin of Russian demantoid using heating experiments.