Limonite

UNB-2017-0078Minerals » Oxides » Hydroxides

Description

Amorphous form of yellow-brown Limonite. Limonite (FeO(OH) x nH2O) can be yellow or brown in colour with a glassy, silky or dull lustre. Streak is yellowish-brown and hardness is 4 to 5 1/2. Limonite is usually found as amorphous form or earthy, fibrous, botryoidal and stalactitic. Limonite is commonly pseudomorphous after pyrite, Marcastie and Siderite.

Specifications

Object nameLimonite
IDUNB-2017-0078
Legal statusPermanent collection
CategoryMineral
Classification
Mineral group:
Oxides
Sub-group:
Hydroxides
OriginUnknown
Pieces1
PartialNo
Measurements
  • 3.5cm x 7.5cm x 4.5cm

Publications

  • Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.