Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Mining | A. An alluvial or beach sand consisting predominantly of grains of heavy, dark minerals or rocks (e.g., magnetite, rutile, garnet, or basaltic glass), concentrated chiefly by wave, current, or surf action. It may yield valuable minerals. See also:beach placerb. An asphaltic sand. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
Black sands are used by miners and prospectors to indicate the presence of a placer formation. Placer mining activities produce a concentrate that is composed mostly of black sand. Black sand concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous magma processes into a common mineral-suite that later becomes black sands, after weathering and erosion.
Several gemstones, such as garnet, ruby, sapphire, and diamond are found in placers and in the course of placer mining, and sands of these gems are found in black sands and concentrates. Purple or ruby-colored garnet sand often forms a showy surface dressing on ocean beach placers.
See Also
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Black sand."
Crosswords: BLACK SAND |
| Specialty definitions using "BLACK SAND": back lead ♦ detrital deposits ♦ mineral occurrence. (references) |
| Thumbnail | Description & Credit |  | View from Sequam Island camp site View of volcanic caldera with black sand beach Party off of PIONEER. Credit: Coast & Geodetic Survey Historical Image Collection. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
black sand beach | 69 |
black sand | 31 |
hawaii black sand beach | 20 |
beauty black sand | 4 |
aquarium black sand | 2 |
| Source: compiled by the editor from various references; see credits. | |
| Language | Translations for "BLACK SAND"; alternative meanings/domain in parentheses. | |
Portuguese | areia preta. (various references) | |
| Source: compiled by the editor from various translation references. | ||
Scrabble® Enable2K-Verified Anagrams | |
Direct Anagrams: backlands. | |
| Words within the letters "a-a-b-c-d-k-l-n-s" | |
-1 letter: backland, scabland. | |
-2 letters: scandal. | |
-3 letters: alands, blacks, blanks, cabals, canals, clanks, sandal. | |
-4 letters: aback, alack, aland, alans, albas, anlas, baals, backs, balas, balds, balks, balsa, banal, bands, banks, basal, black, bland, blank, cabal, calks, canal, clads, clank, clans, kanas, lacks, lands, nadas, nasal, salad, scald, skald, slack, slank, snack. | |
-5 letters: aals, abas, alan, alas, alba. | |
| Words containing the letters "a-a-b-c-d-k-l-n-s" | |
+1 letter: blacklands. | |
+3 letters: blackhanders. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Crosswords 2. Images: Slideshow 3. Images: Photo Album 4. Expressions: Internet | 5. Translations: Modern 6. Anagrams 7. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.