1 Definition
1.1 Definition
Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt
Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
1.2 History
1.2.1 Origin
Iceland
Western Australia, Minnesota
1.2.2 Discoverer
Unknown
Newton Horace Winchell
1.3 Etymology
From German Tachylite, from tachy- + Greek lutos soluble, melting
From the name of Taconic Mountains in New England
1.4 Class
Igneous Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock