{"product_id":"opal-gold-pendant-2070","title":"Boulder Opal Pendant – 18K Gold, 13×8mm, Semi-Dark, Green Pinfire","description":"\u003cstyle\u003e.rotr-faq { border-bottom: 1px solid #e5e5e5; padding: 14px 4px; margin: 0; } .rotr-faq:first-of-type { border-top: 1px solid #e5e5e5; } .rotr-faq \u003e summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; padding: 4px 0; outline: none; } .rotr-faq \u003e summary::-webkit-details-marker { display: none; } .rotr-faq \u003e summary::after { content: \"+\"; font-size: 1.5em; font-weight: 300; line-height: 1; margin-left: 12px; transition: transform 0.2s ease; } .rotr-faq[open] \u003e summary::after { content: \"−\"; } .rotr-faq-answer { margin: 10px 0 0 0; }\u003c\/style\u003e\n\n\u003cp\u003ePinfire is one of the rarer patterns in Australian opal — tiny, tightly packed points of colour that flash across the stone's face like lit sparks. On this 13×8mm Queensland boulder opal, the pinfire arrives in green: hundreds of minute colour points that shift and catch as the pendant moves. The semi-dark body gives the colour enough contrast to read with real presence, and the brightness grading means the flash is visible from a natural distance — not something you have to angle into the light to see. Set in an 18K yellow gold bezel, the warm metal tone complements the green fire without competing with it. The pendant hangs on an 18K gold-plated 45cm chain, ready to wear.\u003c\/p\u003e\n\n\u003ch3\u003eAbout Boulder Opal\u003c\/h3\u003e\n\u003cp\u003eBoulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone:\u003c\/strong\u003e Boulder Opal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 13×8mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour Play:\u003c\/strong\u003e Green\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Tone:\u003c\/strong\u003e Semi-dark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrightness:\u003c\/strong\u003e Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePattern:\u003c\/strong\u003e Pinfire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel, 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e 18K yellow gold-plated, 45cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Queensland, Australia\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e One-of-a-kind — 1 piece available\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCaring for Your Opal\u003c\/h3\u003e\n\u003cp\u003eOpal is softer than diamond or sapphire, so a little care goes a long way. See \u003ca href=\"\/pages\/opal-care\"\u003eOpal Care\u003c\/a\u003e for storage, cleaning, and what to avoid.\u003c\/p\u003e\n\n\u003ch3\u003eProvenance\u003c\/h3\u003e\n\u003cp\u003eHand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. \u003ca href=\"\/pages\/about-rocks-on-the-rocks\"\u003eRead Joseph's story →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat is a pinfire pattern?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003ePinfire describes a colour pattern made up of very small, closely spaced points of colour — like hundreds of tiny sparks scattered across the stone's face. Each point flashes independently as the stone moves or the light shifts, so the overall effect is a dense, animated scatter of colour rather than broad sweeps or rolling flashes. It's one of the more distinctive patterns in Australian opal, and stones with strong, evenly distributed pinfire across a well-coloured background are genuinely hard to come by.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eWhat does semi-dark body tone mean?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eSemi-dark means the background of the stone sits between a light-bodied opal and a fully black one — dark enough to give the colour play real contrast, but still warm and earthen rather than heavy or opaque. On this boulder opal, the natural ironstone backing contributes to the depth of tone. The result is that the green pinfire reads clearly without needing to be held at a precise angle to the light.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs the chain solid gold or plated?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eThe pendant setting is solid 18K yellow gold. The chain is 18K yellow gold-plated — a standard pairing that keeps the piece accessible without compromising the setting. A solid 18K chain upgrade is available on request.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eIs this a natural Australian opal?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eYes — a solid, untreated boulder opal from Queensland. Not a doublet, not a triplet, not synthetic. One stone, natural colour, cut with the ironstone backing intact as nature formed it.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"rotr-faq\"\u003e\u003csummary\u003eCertification, shipping, returns?\u003c\/summary\u003e\u003cdiv class=\"rotr-faq-answer\"\u003eEvery piece is backed by Joseph's personal guarantee, ships fully insured within Australia, and can be returned within 14 days. See \u003ca href=\"\/pages\/buying-an-opal\"\u003eBuying an Opal\u003c\/a\u003e for the full breakdown.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003cp\u003e\u003cem\u003eEach piece is one-of-a-kind. Once this stone sells, there is no other like it.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rocks On The Rocks","offers":[{"title":"Default Title","offer_id":43599503163575,"sku":"2070","price":1550.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/9176\/1987\/files\/OpBldPd1070.1.jpg?v=1727266048","url":"https:\/\/www.rocksontherocks.com\/products\/opal-gold-pendant-2070","provider":"Rocks On The Rocks","version":"1.0","type":"link"}