ガテライト
ギャラリーに2件
Gatelite は、 highly aluminous（高アルミニウム含量）で peralkaline 条件下のペグマタイトで形成される、希少なカルシウム・セリウム・マグネシウム・アルミニウム・珪酸塩鉱物です。 Typically grows as elongated, prismatic crystals and may exhibit a glassy to resinous luster, often with a pale to medium brown color that can show subtle zoning. The mineral’s structure features silicate groups that contribute to its distinctive, complex composition, and its rarity makes each specimen a noteworthy find for a thoughtful collector.
- 化学式
- CaCe3(AlAl2Mg)[Si2O7][SiO4]3O(OH)2
- 希少度
- Ultra Rare
- 安定性
- Stable
- コレクターの関心度
- High Interest
- 分類上の注記
- Sorosilicate; epidote supergroup, gatelite subgroup
主な特性
- 結晶系
- 単斜晶系
- モース硬度
- 6
- 比重
- 4.15–4.17
- 光沢
- ガラス光沢
- 透明度
- 透明, 半透明
- 色
- 褐色, 黄色
- 条痕色
- 白色
- 断口
- 不平坦
- 晶癖
- 柱状, 板状, 粒状
- マイクロマウントのみ
ガテライトについて
Notable specimens have come from a few specialized localities known for ultra-rare rare-earth bearing phases. Where it occurs, gatelite tends to be associated with other uncommon pegmatite minerals, and pieces may display fine crystallization, expressive termination faces, or a gentle, satin-like sheen that appeals to careful study and display. Collectors prize gatelite for its rarity, its rarity-driven curiosity, and its reminder of the diverse chemistry possible in pegmatitic systems. Each well-prepared specimen offers a window into the chemistry of alkaline environments and the intricate ordering of silicate minerals that emerge under those conditions.