Tasmanite

It is commonly associated with high-latitude, nutrient-rich, marginal marine settings found in Tasmania.

Some sources also produce a red-brown translucent material similar to amber which has also been called tasmanite.

Church, near the floodplain of the Mersey River (Northern Tasmania), found translucent reddish-brown or brown samples of an unknown mineral resembling amber embedded in shale in one of the small Tasmanite deposits.

These differences ultimately amounted to up to 40% of the main rock and had the appearance of narrow, scaly lenses, difficult to separate from the main rock.

Professor Church carried out laboratory chemical analysis and made a detailed description of the new mineral, naming it by the same name as the parent rock: Tasmanite.