| Title | स्थूल कण बलुआ पत्थर (Coarse-grained Sandstone)Rare Sthūl kaṇ baluā patthar Coarse-grained Sandstone |
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| Description | मोटा बलुआ पत्थर - Moṭā Baluā Patthar (Coarse-grained Sandstone), also known as *Sthula Balukashma* (स्थूल बालुकाश्म) in Sanskrit, is a sedimentary rock composed primarily of quartz grains [1]. Characterized by a coarse grain size (0.5-2 mm), it exhibits high porosity (10-30%) and permeability, influencing its durability [1]. Compressive strength ranges from 15-60 MPa. Its geological origin involves the cementation of sand deposits, often with silica, calcite, or iron oxides acting as binders. Historically sourced from quarries in Rajasthan and Madhya Pradesh, it was extensively employed during the medieval period, particularly by the Rajput Dynasty, in the construction of forts, temples, and other monumental structures [2]. Traditional construction methods involved quarrying, dressing, and laying the stone using lime mortar (*Chuna*) [3]. Conservation efforts address weathering, erosion, and biological growth, requiring careful selection of compatible repair materials and techniques to preserve its heritage value [4]. Understanding its material properties is crucial for effective restoration of *Dharohar* (धरोहर) - heritage sites. |
| Also Known As | Coarse-grained Sandstone Sthūl kaṇ baluā patthar Coarse Sandstone Coarse-grained Sandstone मोटा बलुआ पत्थर बड़ा दाना बलुआ पत्थर स्थूल बालुकाश्म मोटी रेत का पत्थर |
| Tags | Coarse-grained Sandstone Sedimentary Rock Porous Foundation Stone Building Material |
| Material ID | INHFMAT-125369352-20-11-25-MA |
| URI | https://www.inheritage.foundation/aat/material/coarse-grained-sandstone |
| API Endpoint | https://www.inheritage.foundation/api/v1/aat/materials/coarse-grained-sandstone |
| Total Sites | 1 |
| Primary Sites | 1 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
| Types | Sedimentary Rock Sandstone |
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| Regions | Rajasthan Madhya Pradesh |
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| Time Periods | Medieval Period |
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| Dynasties | Rajput Dynasty |
| Sources | Quarries in Rajasthan Quarries in Madhya Pradesh |
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| Properties | Compressive strength: 15-60 MPa Porosity: 10-30% Grain size: 0.5-2 mm Permeability: High |
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| Uses | Foundation construction Retaining wall construction Masonry construction Fortification construction Temple construction |
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| Materials | Lime Mortar Surkhi (Brick Dust) |
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| Styles | Rajput Architecture |
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| Categories | Fort Temple |
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| Notes |
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| Title | Type | Notes |
|---|---|---|
| Building Stones of India | Book | Geological survey report |
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Chausath Yogini Temple Jabalpur | Primary | 100% |