Definitions for columbite
kəˈlʌm baɪtcolumbite

Princeton's WordNetRate this definition:0.0 / 0 votes

1. niobite, columbitenoun

   a black mineral that is an ore of niobium and tantalum

WiktionaryRate this definition:0.0 / 0 votes

1. columbitenoun

   A black mineral that is a mixed iron and manganese niobate and tantalate, and is the main ore of niobium and tantalum

WikipediaRate this definition:0.0 / 0 votes

1. Columbite

   Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb2O6], is a black mineral group that is an ore of niobium. It has a submetallic luster and a high density and is a niobate of iron and manganese. This mineral group was first found in Haddam, Connecticut, in the United States. It forms a series with the tantalum-dominant analogue ferrotantalite and one with the manganese-dominant analogue manganocolumbite. The iron-rich member of the columbite group is ferrocolumbite. Some tin and tungsten may be present in the mineral. Yttrocolumbite is the yttrium-rich columbite with the formula (Y,U,Fe)(Nb,Ta)O4. It is a radioactive mineral found in Mozambique. Columbite has the same composition and crystal symmetry (orthorhombic) as tantalite. In fact, the two are often grouped together as a semi-singular mineral series called columbite-tantalite or coltan in many mineral guides. However, tantalite has a much greater specific gravity than columbite, more than 8.0 compared to columbite's 5.2.Columbite is also very similar to tapiolite. Those minerals have the same chemical composition but different crystal symmetry: orthorhombic for columbite and tetragonal for tapiolite. The largest documented single crystal of columbite consisted of plates 6 mm (0.24 in) thick measuring 76 cm × 61 cm (30 in × 24 in).Columbite contains varying amounts of thorium and uranium, which makes it radioactive to various degrees.

ChatGPTRate this definition:0.0 / 0 votes

1. columbite

   Columbite is a black, crystalline mineral consisting of niobate and tantalate of iron, manganese, or other metals, which is the main source for niobium and tantalum. It is often used in the manufacturing of electronic devices and equipment. The name comes from the former use of niobium, which was often called columbium.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Columbitenoun

   a mineral of a black color, submetallic luster, and high specific specific gravity. It is a niobate (or columbate) of iron and manganese, containing tantalate of iron; -- first found in New England

2. Etymology: [Cf. F. colombite. See Columbium.]

Matched Categories

1. • Mineral

How to pronounce columbite?

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Numerology

1. Chaldean Numerology

   The numerical value of columbite in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of columbite in Pythagorean Numerology is: 1

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=columbite
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Columbite
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Columbite
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/columbite