Hydroxylapatite

Origin: Gischi glazier, Binntal, Switzerland

Picture height: 3mm

Sample owner: F.C.A. de Wit

Photo courtesy of:

Pieter Stemvers, Leusden, Netherlands

Hydroxylapatite with augite

Origin: Snörom, Norway

Sample size: 2.8 x 2.8 x 2.2 cm (top), 4.3 x 3 x 2.4 cm (bottom)

Photo courtesy of:

John Veevaert, Trinity Mineral Co

Origin: N'Chwaning II mine, N'Chwaning mines, Kalahari manganese fields, Northern Cape Province, South Africa

Sample size: 27 x 27 x 29 mm

Hydroxylapatite pseudomorph after gypsum

Origin: Asterillo Mine, Mapimí, Mun. de Mapimí, Durango, Mexico

Ex. Don Belsher collection

Sample size: 7 x 4.5 x 2.6 cm (top), 6 x 6.6 x 5 cm (2nd/bottom row)

Photo courtesy of:

Dan Weinrich

Tabular hydroxylapatite crystals on cream coloured feldspar

Origin: Sapo Mine, Minas Gerais, Brazil

Sample size: 3.4 x 2.5 x 1.4 cm

Photo courtesy of:

John Veevaert, Trinity Mineral Co

SEM images

TEM images

vibrational spectra description

IR spectra

Raman spectra

N-IR spectra

F-IR spectra

IES spectra