Larvikite Obelisk Point Natural Feldspar Syenite Crystal Tower 75-110mm Polished Mineral Display Stone with Certificate
£ 19.20
Larvikite Obelisk Point – Natural Feldspar Syenite Mineral TowerThis listing features a genuine Larvikite Obelisk Point, carefully carved and
polished from natural Larvikite stone. The obelisk tower shape highlights the mineral’s distinctive silver-blue reflective feldspar crystals set within a dark igneous rock matrix. The polished faces of the tower reveal the natural mineral textures and subtle shimmering optical effects that make Larvikite a visually striking geological material.Each obelisk has been selected for its natural mineral character and aesthetic appeal. The photographs show an example of the actual specimen you will receive, with each piece displaying its own natural variation in feldspar patterns and reflective flashes. The height of the obelisk ranges approximately 75–110mm, and full sizing reference can be seen in the listing photographs.This crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming that the specimen is a genuine natural mineral.Mineral Identification and Geological ClassificationLarvikite is an igneous rock primarily composed of feldspar minerals, most notably varieties of potassium feldspar and plagioclase feldspar. It belongs to the rock group known as monzonite or syenite, depending on mineral composition and structure.Key mineralogical properties include:
• Rock classification: Igneous plutonic rock
• Primary minerals: Feldspar (anorthoclase and oligoclase varieties)
• Associated minerals: Nepheline, biotite, hornblende, and quartz traces in some formations
• Chemical composition: Silicate minerals dominated by aluminium, potassium, sodium, and calcium
• Crystal system: Feldspar minerals crystallise within the triclinic and monoclinic systems
• Hardness: Typically 6–6.5 on the Mohs scale
• Lustre: Vitreous to pearly on feldspar crystal surfacesLarvikite is widely known for its iridescent feldspar reflections, which occur when light interacts with internal crystal structures.Geological Formation of LarvikiteLarvikite forms deep within the Earth’s crust through slow crystallisation of magma, producing a coarse-grained igneous rock with visible mineral crystals. As magma cools gradually beneath the surface, feldspar crystals develop within the molten rock, creating the distinctive texture seen in Larvikite.The slow cooling process allows large feldspar crystals to grow within the matrix, forming:
• Interlocking feldspar grains
• Dark mineral matrix surrounding the crystals
• Reflective surfaces within the feldspar structure
• Visible mineral boundaries between crystalsThese feldspar crystals sometimes exhibit labradorescence-like optical effects, where light reflects internally and produces flashes of blue or silver tones.Colour Characteristics and Optical EffectsLarvikite is recognised for its dark grey to black base colour, which contrasts with the reflective feldspar inclusions embedded throughout the stone. These feldspar crystals often display subtle iridescent flashes when light moves across the surface.Natural visual characteristics may include:
• Dark charcoal or black mineral matrix
• Silver-grey feldspar inclusions
• Blue reflective flashes within crystal faces
• Speckled or patterned mineral distributionThe reflective effect is caused by light scattering within feldspar crystal layers, producing a subtle shimmering appearance that becomes more visible when the stone is polished.Obelisk Tower Shape and Lapidary CraftsmanshipThe stone has been carved into a polished obelisk tower, a geometric form that highlights the mineral structure of the rock while creating a stable display specimen. Skilled lapidary techniques are used to cut and polish the mineral surfaces to enhance the natural feldspar reflections.Typical features of the obelisk carving include:
• Four or more polished faces
• A pointed apex forming the tower tip
• Flat base for stable display
• Smooth polished surfaces revealing the mineral texturesThe polished surfaces allow the feldspar crystals to catch and reflect light, making the internal mineral structure easier to observe.Geological Origin and LocalityLarvikite is famously associated with Larvik, Norway, where the rock was first identified and named. The region contains extensive deposits of this distinctive igneous rock, formed during ancient magmatic activity within the Oslo Rift geological province.This area is known for producing large bodies of feldspar-rich intrusive rock, where magma solidified deep underground millions of years ago. The unique mineral composition and reflective feldspar crystals found in Larvikite make it one of Norway’s most recognisable geological materials.Collecting and Display AppealLarvikite specimens are popular among mineral collectors and stone enthusiasts because of their distinctive reflective feldspar crystals and dark igneous matrix. When polished into obelisks or towers, the mineral patterns become more visible and visually striking.Collectors value Larvikite for:
• Its unique feldspar crystal reflections
• Attractive contrast between dark matrix and silver inclusions
• Geological origin as a plutonic igneous rock
• Polished forms suitable for decorative displayThe obelisk shape makes this specimen suitable for display in mineral cabinets, desks, shelves, or decorative stone collections.Cultural and Traditional ContextIn some modern crystal collecting traditions, Larvikite is traditionally associated with grounding and reflection, and may appear in decorative arrangements or symbolic displays. These interpretations reflect cultural traditions rather than scientifically established geological properties.Authenticity and Specimen Details
• Genuine Larvikite mineral obelisk tower
• Rock type: Feldspar-rich igneous syenite
• Height: Approximately 75–110mm
• Polished obelisk point carving
• Natural feldspar crystal reflections visible
• Carefully selected display specimen
• Photographs show an example of the actual specimen you will receive
• Full sizing reference available in listing images
• Includes Certificate of Authenticity lifetime guarantee generic cardEach Larvikite obelisk displays natural variations in feldspar crystal placement and reflective flashes, making every specimen a distinctive example of this unique igneous rock.
polished from natural Larvikite stone. The obelisk tower shape highlights the mineral’s distinctive silver-blue reflective feldspar crystals set within a dark igneous rock matrix. The polished faces of the tower reveal the natural mineral textures and subtle shimmering optical effects that make Larvikite a visually striking geological material.Each obelisk has been selected for its natural mineral character and aesthetic appeal. The photographs show an example of the actual specimen you will receive, with each piece displaying its own natural variation in feldspar patterns and reflective flashes. The height of the obelisk ranges approximately 75–110mm, and full sizing reference can be seen in the listing photographs.This crystal includes a Certificate of Authenticity lifetime guarantee generic card, confirming that the specimen is a genuine natural mineral.Mineral Identification and Geological ClassificationLarvikite is an igneous rock primarily composed of feldspar minerals, most notably varieties of potassium feldspar and plagioclase feldspar. It belongs to the rock group known as monzonite or syenite, depending on mineral composition and structure.Key mineralogical properties include:
• Rock classification: Igneous plutonic rock
• Primary minerals: Feldspar (anorthoclase and oligoclase varieties)
• Associated minerals: Nepheline, biotite, hornblende, and quartz traces in some formations
• Chemical composition: Silicate minerals dominated by aluminium, potassium, sodium, and calcium
• Crystal system: Feldspar minerals crystallise within the triclinic and monoclinic systems
• Hardness: Typically 6–6.5 on the Mohs scale
• Lustre: Vitreous to pearly on feldspar crystal surfacesLarvikite is widely known for its iridescent feldspar reflections, which occur when light interacts with internal crystal structures.Geological Formation of LarvikiteLarvikite forms deep within the Earth’s crust through slow crystallisation of magma, producing a coarse-grained igneous rock with visible mineral crystals. As magma cools gradually beneath the surface, feldspar crystals develop within the molten rock, creating the distinctive texture seen in Larvikite.The slow cooling process allows large feldspar crystals to grow within the matrix, forming:
• Interlocking feldspar grains
• Dark mineral matrix surrounding the crystals
• Reflective surfaces within the feldspar structure
• Visible mineral boundaries between crystalsThese feldspar crystals sometimes exhibit labradorescence-like optical effects, where light reflects internally and produces flashes of blue or silver tones.Colour Characteristics and Optical EffectsLarvikite is recognised for its dark grey to black base colour, which contrasts with the reflective feldspar inclusions embedded throughout the stone. These feldspar crystals often display subtle iridescent flashes when light moves across the surface.Natural visual characteristics may include:
• Dark charcoal or black mineral matrix
• Silver-grey feldspar inclusions
• Blue reflective flashes within crystal faces
• Speckled or patterned mineral distributionThe reflective effect is caused by light scattering within feldspar crystal layers, producing a subtle shimmering appearance that becomes more visible when the stone is polished.Obelisk Tower Shape and Lapidary CraftsmanshipThe stone has been carved into a polished obelisk tower, a geometric form that highlights the mineral structure of the rock while creating a stable display specimen. Skilled lapidary techniques are used to cut and polish the mineral surfaces to enhance the natural feldspar reflections.Typical features of the obelisk carving include:
• Four or more polished faces
• A pointed apex forming the tower tip
• Flat base for stable display
• Smooth polished surfaces revealing the mineral texturesThe polished surfaces allow the feldspar crystals to catch and reflect light, making the internal mineral structure easier to observe.Geological Origin and LocalityLarvikite is famously associated with Larvik, Norway, where the rock was first identified and named. The region contains extensive deposits of this distinctive igneous rock, formed during ancient magmatic activity within the Oslo Rift geological province.This area is known for producing large bodies of feldspar-rich intrusive rock, where magma solidified deep underground millions of years ago. The unique mineral composition and reflective feldspar crystals found in Larvikite make it one of Norway’s most recognisable geological materials.Collecting and Display AppealLarvikite specimens are popular among mineral collectors and stone enthusiasts because of their distinctive reflective feldspar crystals and dark igneous matrix. When polished into obelisks or towers, the mineral patterns become more visible and visually striking.Collectors value Larvikite for:
• Its unique feldspar crystal reflections
• Attractive contrast between dark matrix and silver inclusions
• Geological origin as a plutonic igneous rock
• Polished forms suitable for decorative displayThe obelisk shape makes this specimen suitable for display in mineral cabinets, desks, shelves, or decorative stone collections.Cultural and Traditional ContextIn some modern crystal collecting traditions, Larvikite is traditionally associated with grounding and reflection, and may appear in decorative arrangements or symbolic displays. These interpretations reflect cultural traditions rather than scientifically established geological properties.Authenticity and Specimen Details
• Genuine Larvikite mineral obelisk tower
• Rock type: Feldspar-rich igneous syenite
• Height: Approximately 75–110mm
• Polished obelisk point carving
• Natural feldspar crystal reflections visible
• Carefully selected display specimen
• Photographs show an example of the actual specimen you will receive
• Full sizing reference available in listing images
• Includes Certificate of Authenticity lifetime guarantee generic cardEach Larvikite obelisk displays natural variations in feldspar crystal placement and reflective flashes, making every specimen a distinctive example of this unique igneous rock.