Definition
Origin
Discoverer
Etymology
Class
Sub-Class
Group
Other Categories
Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
From any intrusive igneous rock, having a majority of carbonate minerals
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Appinite is an igneous rock in which the crystals are so fine grained that individual minerals cannot be easily distinguished
From the variety of Lamprophyre Greek lampros bright and shining + porphureos purple
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock