G4101 Forest Green Granite, industry standard code G4101, also known as "Rongcheng Forest Green", "Deep Green Marble", "Jade Forest Green", or "Emerald Forest Green". For international trade quotations, the English name may be abbreviated as G4101 Green Granite or G4101 Forest Green Stone to facilitate overseas client searches, enquiries and procurement. Synonymous English names (e.g. G4101 Dark Green Granite) are annotated to enhance search visibility and compatibility.
The primary source is concentrated in Rongcheng City, Weihai, Shandong Province, China – the sole core origin for G4101 Forest Green. Leveraging premium mineral deposits on the Jiaodong Peninsula, the stone exhibits consistent quality, uniform colouration, and fine grain texture, free from noticeable impurities or fissures. Proximity to Qingdao and Yantai ports facilitates maritime export across European, American, Japanese, and Korean markets.
The vein exhibits concentrated distribution with proven reserves exceeding 800 million cubic metres. Formed during the Mesozoic Yanshanian period, prolonged geological evolution has yielded its distinctive forest green base colour and natural grain with minimal fissures. Year-round supply stability exceeds 98%, accommodating both bulk engineering contracts and custom orders.
Dominated by deep forest green tones, the base colour is uniformly saturated with natural lustre. Smoothly interweaving light grey and dark green veins evoke a lush canopy. Batch colour variation is maintained at ≤0.6 grade, ensuring premier consistency across New Chinese, European, Rustic, and Modern Minimalist architectural formats.
Predominantly composed of Quartz (>68%), Plagioclase Feldspar (20%-24%), and Amphibole, with minor black mica and chlorite. This forms a hard, medium-fine grain structure with minimal porosity, enabling a high-polish finish with exceptional resistance to abrasion, weathering, and staining.
Recognised globally for rich colour, natural grain, consistent quality, and high value for money. G4101 serves as a mainstream green stone for architectural decoration, municipal engineering, and landscape projects across Europe, Australia, Japan, and South Korea.
| Performance Indicators | Numerical Range | Industry Significance (Key Highlights) |
|---|---|---|
| Bulk Density | 2.68–2.73 g/cm³ | Dense structure with high load-bearing capacity, suited for dry-hanging, floor paving, and heavy-duty infrastructure. Complies with ASTM C615 and JIS A 5201 standards. |
| Water Absorption Rate | ≤0.06% | Exceptionally low absorption providing freeze resistance, impermeability, and stain resistance in humid, snowy, or tropical environments without requiring additional chemical sealing. |
| Mohs Hardness | Grade 6.5–7 | High surface hardness offering outstanding resistance to scratching and wear in high-traffic zones, while accommodating precision cutting and complex profiles. |
| Compressive Strength | 170–270 MPa | Superior structural resistance capable of supporting heavy loads in curtain walls, municipal plazas, airport concourses, and commercial facilities. |
| Flexural Strength | 19–29 MPa | High resistance to rupture, making it ideal for oversized panels, curved façades, and non-standard landscape masonry. |
| Abrasion Resistance (Wear Volume) | <0.19 g/cm² | Outstanding wear resistance ensuring a service life exceeding 50 years with minimal maintenance in high-frequency municipal pathways and retail spaces. |
| Acid Resistance Rate | ≥97.8% | Immune to acid rain and environmental degradation, perfectly adapted to coastal, industrial, and heavy-traffic urban settings. |
| Alkali Resistance Rate | ≥98.5% | Enables safe, stable contact with alkaline mortars, cements, and modern construction chemicals without risks of efflorescence or surface damage. |
| Weather Resistance | Excellent (-40°C to 70°C) | Withstands extreme freeze-thaw cycles and direct solar UV exposure for over 30 years without noticeable degradation, fading, or thermal warping. |
| Radioactivity | Class A (International Standard) | Completely safe for non-restricted interior and exterior use. Certified compliant with ASTM C615 (USA), JIS A 5201 (Japan), SASO (Middle East), and AS 3959 (Australia). |
G4101 Forest Green is categorized into three commercial grades based on shade depth and grain density, matching client budgets and engineering specifications:
Deep forest green tone with a fine, uniform grain structure and minimal colour variation. Achieves a polished gloss level ≥93°. Specifically tailored for luxury hotels, private villas, corporate headquarters, and high-end exterior curtain wall systems.
Natural forest green background featuring moderately dense veining and colour variation within ≤0.6 grade. Serves as the prime export choice for bulk procurement in municipal engineering, commercial paving, and exterior cladding.
Deep ink-green base with bold, coarser mineral distribution providing an earthy, textured aesthetic. High abrasion resistance makes it ideal for public landscape features, municipal plazas, curb infrastructure, and commemorative stone works.
Accounting for over 65% of exports. Widely applied in exterior curtain wall dry-hanging systems, commercial entrances, hotel foyers, luxury residential flooring, and wall cladding across European, Australian, and Middle Eastern landmarks.
Extensively specified for civic plazas, scenic promenades, monuments, and memorial spaces. The deep green tone symbolizes endurance and vitality, complementing civic gathering spaces and cultural parks.
Complements botanical landscapes, golf clubs, private estates, and park infrastructure. Harmonizes naturally with vegetation, water elements, and stone balustrades in natural and contemporary settings.
Engineered for high-durability kitchen countertops, bar surfaces, heavy industrial flooring exposed to chemicals, and bespoke European/Asian memorial stone installations.
Heavy-duty heat-treated wooden crates/pallets (max weight ≤1.8 tonnes), cushioned with anti-scratch protective film, corner guards, and galvanized steel bands to guarantee 100% intact sea freight arrivals.
Dispatched via 20-foot GP and 40-foot HQ containers directly from Qingdao/Yantai ports to major destinations across Europe, North America, Oceania, Japan, Korea, and the Middle East, with real-time tracking.
Minimum Order Quantity: One 20ft container (approx. 22–28 tonnes). Mixed loads combining varied specifications, slab thicknesses, and surface finishes are supported for trial and custom orders.
The material is classified into Class A (Premium - suited for luxury interiors, curtain walls, high gloss), Class B (Standard - ideal for commercial facades, municipal works), and Class C (Coarse-grained - durable for external landscape and memorials). Selections are made based on project aesthetics and budget, with complimentary sample verification available upon request.
Yes. It features high freeze-thaw endurance (-40°C tested for 50 cycles), heat resistance up to 70°C, and exceptional density with ≤0.06% water absorption. It provides long-term resistance against saline coastal air, moisture, and acid rain without deteriorating.
No. With silica content exceeding 68% and dense mineral bonds, it displays minimal visual change (ΔE < 0.7 under accelerated weathering tests) even after 30+ years of direct exterior UV exposure, retaining its rich dark green coloration permanently.
Yes. Comprehensive documentation is supplied with each export shipment, including Class A Radioactivity Certificates, ASTM physical performance reports, Certificate of Origin (CO/Form E/RCEP), detailed packing lists, and commercial invoices to facilitate smooth customs release.
G4101 offers quarry-direct volume availability, distinct natural veining patterns, highly competitive pricing compared to European green granites, and digital processing accuracy within ±0.2mm, supported by established shipping routes from Shandong's deep-water ports.
With its compact crystalline structure and low porosity, the stone naturally resists grease, oils, and chemical stains. Daily cleaning merely requires clear water or neutral pH detergents. Routine maintenance once or twice a year preserves optimal surface condition over decades.