Ferrohornblende and Magnesiohornblende
Origin: Lukov, Bohemia, Czech Republic
Picture height: largest crystal 25 mm
Sample owner: W.R. Moorer
Pieter Stemvers, Leusden, Netherlands
Ferrohornblende
Origin: Monte Somma (Vesuvius), Campania, Italy
Owner: Lou Perloff
Microscopic image
Ferrohornblende
Origin: Bellerberg quarry, Laachersee, Rheinland-Pfalz, Germany
Owner: Lou Perloff
Microscopic image
Photo-Atlas
of Minerals
Origin: near Bilin, Bohemia, Czech Republic
Sample size: 1.3 x 1.7 x 1.5 cm
Origin: Kragero, Telemark, Norway
Sample size: 12.2 x 3.3 x 1.8 cm
Ferrohornblende
Origin: Eas a Bradain, Luib, Isle of Skye, Inverness-shire, North West
Highlands, Scotland, UK
Sample size: 0.7 mm prismatic crystal (left), 2 mm prismatic crystal, with
whiteish crystals of
titanite
(right)
Owner: Steve Rust
Black ferrohornblende crystals and crystal fragments in matrix
Origin: Near Gem Mine, San Benito Co., California, U.S.A.
Sample size: 2.5 x 3.5 cm
Page 2