Hornblende vs. Tourmaline

Hornblende vs. Tourmaline — Is There a Difference?

Difference Between Hornblende and Tourmaline

Hornblendenoun

The most common mineral in the amphibole group, CaNa(Mg,Fe)4(Al,Fe,Ti)3Si6O22(OH,F)2 commonly green to black, found in igneous and metamorphic rocks.

Tourmalinenoun

A complex crystalline silicate containing aluminum, boron, and other elements, used in electronic instrumentation and, especially in its green, clear, and blue varieties, as a gemstone.

Hornblendenoun

(mineral) A green to black amphibole mineral, of complex structure, formed in the late stages of cooling in igneous rock.

Tourmalinenoun

A complex black or dark-coloured borosilicate mineral, compounded with various chemical elements and considered a semi-precious stone.

Hornblendenoun

a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron

Tourmalinenoun

A transparent gemstone cut from it.

Tourmalinenoun

a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones