Home > Laskowski Ⅳ – July 13 > MS1883 Tinzenite with Kutnahorite
Tinzenite with Kutnahorite
- Gambatesa mine
- Val Graveglia
- Liguria
- Italy
- 5.7 × 3.7 × 2.7 cm – Miniature specimen (fits into a 5 cm cube)
Tinzenite is a manganese calcium aluminum borosilicate, specifically a member of the axinite group. Jakob (1923) named the mineral for its occurrence near Tinzen (now Tinizong), Switzerland. The International Mineralogical Association revised its chemical formula in 2016 (CNMNC newsletter 32), later followed by a thorough re-examination of tinzenite (Grew, 2018).
Tinzenite forms a coverage of bladed crystals to 6 mm, on top of which grew an 11 × 16 mm aggregate of kutnahorite. The matrix is skarn; minor quartz and parsettensite are also present. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.
Price: $150
Item code: MS1883
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