Nephrite Jade

Object/Artifact

-

Crater Rock Museum

Name/Title

Nephrite Jade

Entry/Object ID

2013.1.26

Description

Chemical Composition: SiO2 Crystal System: Triclinic System Description: Common Name: Jade var Nephrite Chemistry: Group: Silicates Location: Frazer River, British Columbia, Canada Description: This is a thin slab of jade that is solid green. Physical Charateristics: Nephrite consists of a microcrystalline interlocking fibrous matrix of the calcium, magnesium-iron rich amphibole mineral series tremolite (calcium-magnesium)-ferroactinolite (calcium-magnesium-iron). The middle member of this series with an intermediate composition is called actinolite (the silky fibrous mineral form is one form of asbestos). The higher the iron content the greener the colour. Jadeite is a sodium- and aluminium-rich pyroxene. The gem form of the mineral is a microcrystalline interlocking crystal matrix Fracture: Conchoidal Hardness: 7 Quartz Luster: Pearly Rock Type: Sedimentary Specific Gravity: 2.68-2.72 Streak: White Variety: Black Nephrite Jade Hetian Jade Kunlun Jade Lantian Jade Manasi Jade Meiling Jade Tremolite Jade White Jade Xiuyan Jade

Collection

RAGM Mineral Collection

Acquisition

Accession

2013.1

Source or Donor

Crater Rock Museum (Misc. donors)

Acquisition Method

Gift

Other Names and Numbers

Other Number

Other Number: 2009.64.3

Dimensions

Width

3-3/4 in

Depth

1/4 in

Length

4 in

Location

Location

Drawer

Bottom Shelf

Shelf

Right

Cabinet

Case# 33

Wall

East

Building

Freida Smith Hall

Category

Permanent