Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:category |
phyllosilicate
|
| gptkbp:color |
greenish
reddish brown yellowish brown |
| gptkbp:composition |
complex mixture of clay minerals, iron oxides, ferrihydrite, and other alteration products
|
| gptkbp:crystalSystem |
amorphous
|
| gptkbp:discoveredBy |
late 19th century
|
| gptkbp:event |
meteorites
basaltic rocks |
| gptkbp:form |
alteration product of olivine
|
| gptkbp:hardnessMohs |
3.5
|
| https://www.w3.org/2000/01/rdf-schema#label |
Iddingsite
|
| gptkbp:IMAStatus |
not approved as a mineral species by IMA
|
| gptkbp:luster |
earthy
dull |
| gptkbp:namedAfter |
Joseph P. Iddings
|
| gptkbp:significance |
evidence of water in meteorites
indicator of aqueous alteration on Mars |
| gptkbp:streak |
yellowish brown
|
| gptkbp:yearNamed |
1893
|
| gptkbp:bfsParent |
gptkb:Olivine
|
| gptkbp:bfsLayer |
6
|