{"title":"Rock Dusts","description":"\u003cp\u003eRock dusts are finely milled minerals that release slowly over years, buffer pH and rebuild the mineral base of a soil. They are the long-term foundation of a remineralisation program rather than a feed for the current crop.\u003c\/p\u003e","products":[{"product_id":"palagonite","title":"Palagonite","description":"\u003cp\u003ePalagonite is a unique rock mineral derived from an ancient volcanic deposit, characterised by its high cation exchange capacity (CEC) — meaning it can hold and buffer a large number of nutrients in the soil. It also contains a wide range of trace minerals, making it a valuable addition to any soil blend and a key component alongside other rock mineral inputs like Azomite and volcanic ash.\u003c\/p\u003e\n\u003cp\u003eThe benefits are broad: palagonite improves soil structure and drainage, holds and buffers nutrients, provides a wide range of trace minerals, detoxifies and balances the soil, improves water retention, and supports the growth of beneficial microbes. Compared to basalt, it offers faster mineral release with less pH buffering effect, making it more versatile in mixes where you don't want to shift pH significantly.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918020849904,"sku":"PALAG-500G","price":8.0,"currency_code":"AUD","in_stock":false},{"title":"1kg","offer_id":48918020882672,"sku":"PALAG-1KG","price":14.0,"currency_code":"AUD","in_stock":false},{"title":"2.5kg","offer_id":48918020915440,"sku":"PALAG-2.5KG","price":28.0,"currency_code":"AUD","in_stock":false},{"title":"5kg","offer_id":48918020948208,"sku":"PALAG-5KG","price":50.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/palagonite-441666.jpg?v=1772156689"},{"product_id":"volcanic-ash","title":"Volcanic Ash","description":"\u003cp\u003eVolcanic Ash is a finely divided mineral amendment thrown out by volcanic activity, prized for the same reason the soils around active volcanoes are some of the most fertile on earth. It carries a broad spectrum of minerals — silica, iron, magnesium, calcium, potassium and a long tail of trace elements — in a naturally slow-release form. Rather than feeding plants in a rush like a soluble fertiliser, it behaves like a mineral bank: water, root acids and soil microbes weather it down over months, releasing small amounts steadily and remineralising soils that compost and peat-based mixes often leave short.\u003c\/p\u003e\n\u003cp\u003eIts very fine particle size is part of the appeal — it blends evenly through the root zone and puts a lot of mineral surface in contact with soil and biology. The high silica content helps stiffen cell walls, which growers tie to sturdier plants and better resistance to pests and disease, while the broader mineral load supports soil structure, aeration and cation exchange. It suits any long-cycle system — folded into a fresh mix, worked into beds, or added to a living-soil or no-till reset — anywhere you want durable mineral fertility rather than a quick hit.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918021112048,"sku":"VOLCASH-500G","price":6.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":48918021144816,"sku":"VOLCASH-1KG","price":9.0,"currency_code":"AUD","in_stock":true},{"title":"2.5kg","offer_id":48918021177584,"sku":"VOLCASH-2.5KG","price":17.0,"currency_code":"AUD","in_stock":true},{"title":"5kg","offer_id":48918021210352,"sku":"VOLCASH-5KG","price":30.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/volcanic-ash-895006.jpg?v=1783325497"},{"product_id":"azomite","title":"Azomite","description":"\u003cp\u003eAzomite is a genuine, bonafide calcium-aluminosilicate rock mineral mined from a single unique deposit in Utah — the only source of its kind in the world. Widely used and highly regarded, it contains a full spectrum of trace minerals from A to Z, in a combination not found in any other deposit globally. The Azomite we stock is highly micronised, making it quickly bioavailable to plants and soil biology alike.\u003c\/p\u003e\n\u003cp\u003eThe mineral profile includes boron, calcium, chlorine, cobalt, copper, iron, magnesium, molybdenum, phosphorus, potassium, silicon, sodium, sulphur, and zinc — all of importance in growing strong, healthy, high-yielding plants. We use Azomite in our mixes alongside other rock mineral inputs such as palagonite and volcanic ash, finding that the extra coverage it delivers really rounds out a soil and covers bases that single-mineral amendments can't. Anecdotally, many keen users report increases in quality, and we've personally found it seems to wake up microbes and get them active fast.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":48918021538032,"sku":"AZOMITE-500G","price":8.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":48918021570800,"sku":"AZOMITE-1KG","price":15.0,"currency_code":"AUD","in_stock":true},{"title":"2.5kg","offer_id":48918021603568,"sku":"AZOMITE-2.5KG","price":32.5,"currency_code":"AUD","in_stock":true},{"title":"5kg","offer_id":48918021636336,"sku":"AZOMITE-5KG","price":60.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/azomite.png?v=1782526524"},{"product_id":"waterfall-way-basalt","title":"Waterfall Way Basalt","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWaterfall Way Basalt comes from the New England Tablelands of northern NSW, milled from the deep basalt beds left behind by the ancient Ebor Volcano. This was once a huge shield volcano — at least 45 km across, rising more than 800 m above the surrounding country, formed around 19 million years ago as the Australian plate drifted north over a volcanic hotspot. Erosion has since stripped away roughly 90% of it, leaving thick sheets of hard basalt across the plateau. The road that climbs from the coast up to Armidale — Waterfall Way — is named for the rivers that pour over the edges of those old lava flows, and at Ebor Falls the water drops over dramatic columns of basalt. That's the rock this product is made from.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBecause it came from that setting, the stone is a hard, dense, olivine-bearing tholeiitic basalt that carries one of the highest paramagnetic readings of any basalt available in Australia. Paramagnetism is a measurable physical property of the rock (expressed in CGS units), and iron-rich basalt sits at the top of the scale. Unlike a fertiliser, basalt dust is a slow-acting remineraliser: it feeds soil biology and gradually releases a broad spectrum of minerals as it weathers, rather than delivering a quick nutrient hit. Because it breaks down slowly, a single application keeps working in the soil for a long time.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eCompared to palagonite, Waterfall Way Basalt is harder and less oxidised, and it carries more reactive calcium — much of it held in calcium-rich plagioclase feldspar — which is what makes the two work so well together. Palagonite is itself a form of basalt, but its different mineral structure gives it a different release pattern, so pairing the two broadens both the range of minerals on offer and the timeframe over which they're released. The extra reactive calcium makes this basalt particularly useful in peat-based mixes and acidic soils, where a source of slow, gentle calcium helps buffer the profile without the fast pH swing of lime. Mix it through at soil-building stage, or top-dress and water in on established beds and containers.\u003c\/p\u003e","brand":"Soil Supply Co.","offers":[{"title":"500g","offer_id":49983065325808,"sku":"BASALT-500G","price":8.0,"currency_code":"AUD","in_stock":true},{"title":"1kg","offer_id":49983065358576,"sku":"BASALT-1KG","price":14.0,"currency_code":"AUD","in_stock":true},{"title":"2.5kg","offer_id":49983065391344,"sku":"BASALT-2.5KG","price":28.0,"currency_code":"AUD","in_stock":true},{"title":"5kg","offer_id":49983065424112,"sku":"BASALT-5KG","price":50.0,"currency_code":"AUD","in_stock":true},{"title":"15kg","offer_id":50197308866800,"sku":"BASALT-15KG","price":115.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/1262\/6416\/files\/eborbasalt.png?v=1783404493"}],"url":"https:\/\/soilsupply.co\/collections\/rock-dusts.oembed","provider":"Soil Supply Co.","version":"1.0","type":"link"}