Mineral de col·lecció 4x4 prehnita

Name: Mineral de col·lecció 4x4 prehnita
Brand: Cristalljoia
SKU: 9X4.PRE
Price: 4 EUR
Availability: InStock

Marca: Cristalljoia

Darreres unitats en inventari

4,00 €

Se suele confundir con las zeolitas
ya que se forman juntas
pero la prehnita es un filosilcato y la zoelita es un tectosilicatos.

La prehnita es un mineral de origen hidrotermal en cavidades de rocas básicas. Su nombre es en honor de quien lo trajo hasta europa por primera vez desde Sudáfrica, el coronel aleman Prehn.

Categoría: Minerales filosilicatos

Fórmula química: Ca₂Al(Si₃Al)O₁₀(OH)₂

Color: Verde claro o amarillento

Raya: Blanca a incolora

Lustre: Vítreo a céreo

Transparencia: Semitransparente a translúcido

Sistema cristalino: Ortorrómbico

Hábito cristalino: En fibras radiadas, a veces botroidal

Fractura: Irregular

Dureza: 6 a 6,5 (escala de Mohs)

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