Andradite Garnet Topazolite on Actinolite Khamir Mountains Iran Mineral Specimen
£ 228.00
ANDRADITE GARNET TOPAZOLITE ON ACTINOLITE FROM THE KHAMIR MOUNTAINS, IRAN
This exceptional mineral specimen features Andradite Garnet in the Topazolite variety crystallised on an actinolite matrix, sourced from the renowned Khamir Mountains near Bandar Khamir in Hormozgan Province, Iran. The specimen displays attractive garnet crystals with a golden to yellow-green colour resting on contrasting actinolite, creating a visually striking mineral association valued by collectors. Topazolite is a rare and highly sought-after variety of andradite garnet known for its clarity, brilliance, and rich golden tones. The crystals typically form as well-defined dodecahedral shapes, and when they occur on a contrasting mineral matrix such as actinolite, the resulting display piece highlights the natural crystallography of both minerals. The photographs in this listing show the exact specimen you will receive, allowing collectors to carefully examine the crystal structure, colour, and mineral association before purchase. This crystal is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. Please refer to the listing photographs for full sizing and scale. MINERAL IDENTIFICATION AND COMPOSITION This specimen contains two naturally occurring mineral species: Andradite Garnet (Topazolite variety) and Actinolite. ANDRADITE GARNET (TOPAZOLITE) Andradite is a calcium iron silicate mineral belonging to the garnet group. The Topazolite variety is recognised for its golden-yellow to greenish colour and high lustre. Key characteristics include:
• Mineral Species: Andradite Garnet
• Variety: Topazolite
• Chemical Formula: Ca₃Fe₂(SiO₄)₃
• Mineral Class: Nesosilicate
• Crystal System: Cubic (Isometric)
• Hardness: 6.5–7 on the Mohs scale
• Lustre: Vitreous to resinous
• Transparency: Transparent to translucent
• Crystal Habit: Dodecahedral crystals Topazolite garnets are prized for their brilliance and distinct colour, which can range from warm yellow to olive or golden-green tones. ACTINOLITE Actinolite is a member of the amphibole mineral group and commonly forms fibrous or prismatic green crystals in metamorphic environments. Key characteristics include:
• Mineral Name: Actinolite
• Mineral Group: Amphibole
• Chemical Formula: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂
• Crystal System: Monoclinic
• Hardness: 5–6 on the Mohs scale
• Colour: Dark green to grey-green
• Crystal Habit: Fibrous, needle-like, or prismatic aggregates The contrast between golden garnet crystals and dark green actinolite matrix creates an aesthetically appealing mineral combination. GEOLOGICAL FORMATION OF TOPAZOLITE GARNET Andradite garnets typically form in contact metamorphic environments, where hot fluids from igneous intrusions interact with surrounding rocks. These environments create conditions rich in calcium, iron, and silica—key elements required for garnet formation. Topazolite garnets specifically form in silica-rich skarn deposits where hydrothermal fluids deposit minerals within fractures and cavities. During crystallisation, garnets grow as well-formed crystals within the host rock. The formation process often involves:
• High-temperature contact metamorphism
• Hydrothermal fluid circulation
• Mineral replacement and crystallisation in skarn environments
• Gradual crystal growth in open cavities These conditions can allow garnet crystals to develop their distinctive dodecahedral shapes with high surface lustre. COLOUR CHARACTERISTICS AND CRYSTAL FEATURES Topazolite garnets are notable for their rich colour and reflective crystal faces. The colouration results from the presence of iron within the garnet crystal structure. Typical colour variations include:
• Golden yellow
• Honey-toned yellow
• Olive or greenish-yellow
• Warm amber hues The crystal faces often display strong reflective surfaces when light strikes them, giving the garnets a bright appearance against the darker matrix. In this specimen, the actinolite matrix provides a contrasting dark green background that highlights the garnet crystals. KHAMIR MOUNTAINS MINERAL LOCALITY The Khamir Mountains near Bandar Khamir in Hormozgan Province, Iran are an important locality for unusual mineral specimens, particularly garnets and amphibole minerals formed within skarn environments. This region contains geological formations created by contact metamorphism where igneous intrusions interacted with carbonate rocks. These conditions produced a range of mineral species including garnets, amphiboles, and other silicate minerals. Topazolite garnets from this locality are appreciated by collectors for their strong colour, well-formed crystal shapes, and attractive mineral associations. MINERAL COLLECTING AND DISPLAY Specimens featuring Topazolite Andradite Garnet on Actinolite are highly valued among mineral collectors due to the rarity of the variety and the contrast between the crystal species. This specimen may be suitable for:
• Mineral and crystal collections
• Geological specimen displays
• Collector cabinets and mineral shelves
• Educational mineral collections
• Unique natural gifts for mineral enthusiasts In some traditions, garnet minerals are traditionally associated with symbolic or spiritual interpretations, though such interpretations are cultural beliefs rather than scientific explanations. AUTHENTIC NATURAL MINERAL SPECIMEN This Andradite Garnet Topazolite on Actinolite specimen from the Khamir Mountains, Iran is a genuine natural mineral specimen selected for its crystal structure and mineral association. The specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming the authenticity of the mineral. Please review the photographs carefully for full sizing and scale, as the images show the exact specimen you will receive.
This exceptional mineral specimen features Andradite Garnet in the Topazolite variety crystallised on an actinolite matrix, sourced from the renowned Khamir Mountains near Bandar Khamir in Hormozgan Province, Iran. The specimen displays attractive garnet crystals with a golden to yellow-green colour resting on contrasting actinolite, creating a visually striking mineral association valued by collectors. Topazolite is a rare and highly sought-after variety of andradite garnet known for its clarity, brilliance, and rich golden tones. The crystals typically form as well-defined dodecahedral shapes, and when they occur on a contrasting mineral matrix such as actinolite, the resulting display piece highlights the natural crystallography of both minerals. The photographs in this listing show the exact specimen you will receive, allowing collectors to carefully examine the crystal structure, colour, and mineral association before purchase. This crystal is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. Please refer to the listing photographs for full sizing and scale. MINERAL IDENTIFICATION AND COMPOSITION This specimen contains two naturally occurring mineral species: Andradite Garnet (Topazolite variety) and Actinolite. ANDRADITE GARNET (TOPAZOLITE) Andradite is a calcium iron silicate mineral belonging to the garnet group. The Topazolite variety is recognised for its golden-yellow to greenish colour and high lustre. Key characteristics include:
• Mineral Species: Andradite Garnet
• Variety: Topazolite
• Chemical Formula: Ca₃Fe₂(SiO₄)₃
• Mineral Class: Nesosilicate
• Crystal System: Cubic (Isometric)
• Hardness: 6.5–7 on the Mohs scale
• Lustre: Vitreous to resinous
• Transparency: Transparent to translucent
• Crystal Habit: Dodecahedral crystals Topazolite garnets are prized for their brilliance and distinct colour, which can range from warm yellow to olive or golden-green tones. ACTINOLITE Actinolite is a member of the amphibole mineral group and commonly forms fibrous or prismatic green crystals in metamorphic environments. Key characteristics include:
• Mineral Name: Actinolite
• Mineral Group: Amphibole
• Chemical Formula: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂
• Crystal System: Monoclinic
• Hardness: 5–6 on the Mohs scale
• Colour: Dark green to grey-green
• Crystal Habit: Fibrous, needle-like, or prismatic aggregates The contrast between golden garnet crystals and dark green actinolite matrix creates an aesthetically appealing mineral combination. GEOLOGICAL FORMATION OF TOPAZOLITE GARNET Andradite garnets typically form in contact metamorphic environments, where hot fluids from igneous intrusions interact with surrounding rocks. These environments create conditions rich in calcium, iron, and silica—key elements required for garnet formation. Topazolite garnets specifically form in silica-rich skarn deposits where hydrothermal fluids deposit minerals within fractures and cavities. During crystallisation, garnets grow as well-formed crystals within the host rock. The formation process often involves:
• High-temperature contact metamorphism
• Hydrothermal fluid circulation
• Mineral replacement and crystallisation in skarn environments
• Gradual crystal growth in open cavities These conditions can allow garnet crystals to develop their distinctive dodecahedral shapes with high surface lustre. COLOUR CHARACTERISTICS AND CRYSTAL FEATURES Topazolite garnets are notable for their rich colour and reflective crystal faces. The colouration results from the presence of iron within the garnet crystal structure. Typical colour variations include:
• Golden yellow
• Honey-toned yellow
• Olive or greenish-yellow
• Warm amber hues The crystal faces often display strong reflective surfaces when light strikes them, giving the garnets a bright appearance against the darker matrix. In this specimen, the actinolite matrix provides a contrasting dark green background that highlights the garnet crystals. KHAMIR MOUNTAINS MINERAL LOCALITY The Khamir Mountains near Bandar Khamir in Hormozgan Province, Iran are an important locality for unusual mineral specimens, particularly garnets and amphibole minerals formed within skarn environments. This region contains geological formations created by contact metamorphism where igneous intrusions interacted with carbonate rocks. These conditions produced a range of mineral species including garnets, amphiboles, and other silicate minerals. Topazolite garnets from this locality are appreciated by collectors for their strong colour, well-formed crystal shapes, and attractive mineral associations. MINERAL COLLECTING AND DISPLAY Specimens featuring Topazolite Andradite Garnet on Actinolite are highly valued among mineral collectors due to the rarity of the variety and the contrast between the crystal species. This specimen may be suitable for:
• Mineral and crystal collections
• Geological specimen displays
• Collector cabinets and mineral shelves
• Educational mineral collections
• Unique natural gifts for mineral enthusiasts In some traditions, garnet minerals are traditionally associated with symbolic or spiritual interpretations, though such interpretations are cultural beliefs rather than scientific explanations. AUTHENTIC NATURAL MINERAL SPECIMEN This Andradite Garnet Topazolite on Actinolite specimen from the Khamir Mountains, Iran is a genuine natural mineral specimen selected for its crystal structure and mineral association. The specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming the authenticity of the mineral. Please review the photographs carefully for full sizing and scale, as the images show the exact specimen you will receive.
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