“Herring bone Silver in Quartz. The crystalline Silver occurs in a vein of an iron rich clay mineral. This type of Silver crystal form is often referred to as a spinel twin. Their is a debate as to whether this a true spinel twin form . Collection of A.Debnam”

“Herring bone Silver in Quartz. The crystalline Silver occurs in a vein of an iron rich clay mineral. This type of Silver crystal form is often referred to as a spinel twin. Their is a debate as to whether this a true spinel twin form . Collection of A.Debnam”

“Herring bone Silver in Quartz. The crystalline Silver occurs in a vein of an iron rich clay mineral. This type of Silver crystal form is often referred to as a spinel twin. Their is a debate as to whether this a true spinel twin form . Collection of A.Debnam”

“Herring bone Silver in Quartz. The crystalline Silver occurs in a vein of an iron rich clay mineral. This type of Silver crystal form is often referred to as a spinel twin. Their is a debate as to whether this a true spinel twin form . Collection of A.Debnam”