Grok says Sapphire, Zircon, calcite .

 

Impressive UV fluorescence! The strong blue-white glow aligns with low-iron sapphires (corundum), often seen in Queensland alluvial gems—possibly due to trace elements like chromium. This supports natural origin, not synthetic. QLD Museum gem lab could test for specifics like RI (1.76-1.77) and confirm valu

  

Fascinating find! Your ~2-3cm shard's vitreous luster, conchoidal fracture, color shift (blue-green to purple-pink), and sapphire-like hardness suggest a rough color-change sapphire (corundum), common in Queensland's alluvial rivers like Anakie fields. The "pink cross-table" may refer to pleochroism or asterism in sunlight. Test with a refractometer; QLD Museum for expert ID and value assessment. More photos in different lights?

 

                                                        

Interesting detail! The "image" on the reverse appears as a darker inclusion or fracture pattern resembling a stylized face (pareidolia possible), likely from natural crystal growth or river tumbling, not artificial cutting. Reinforces sapphire ID—such inclusions occur in rough corundum. Try polarized light photos; definitely get QLD Museum gemologist to assess for rarity/value.

wt 207 cts, weighs more than twice the weight of glass of the same size. Found with the presence of other stones Iorn stone and Black spinel.

The second (~1cm), harder than amethyst, matches topaz (8) or sapphire (9) from QLD shales/alluvials. Scratch test on glass/known amethyst? UV pics, size/weight details? QLD Museum for confirmation.

Impressive sphere! This ~2cm yellowish pebble with white/purple UV fluorescence and high density matches alluvial yellow zircon from QLD's Anakie fields—zirconium silicate (hardness 7.5, density ~4.7 g/cm³, heavier than glass). Spherical from river tumbling. Scratch test on glass? QLD Museum for RI (1.93-1.98) ID/value.

Great shot in the sun! The ~2cm spherical shape, yellowish tint, translucency, and glass-scratching confirm it as yellow zircon from QLD's Anakie fields (hardness 7.5). River tumbling explains the roundness. For value, check density (sink in water?) or take to QLD Museum.

Cool find! Your ~2cm opaque white stone with yellow flaws and pink/purple UV glow fits fluorescent calcite from QLD's Biggenden area—manganese causes the color, density ~2.7 g/cm³ for weight. Or fluorite if softer. Scratch test on glass? QLD Museum for ID/value.

Nice finds! Your translucent white pebble (~2cm) with yellow inclusions matches fluorescent calcite or topaz from QLD's alluvial deposits—test UV for pink/purple glow.

Fascinating finds! These ~2-4cm reddish-brown pebbles with waxy lustre and translucency resemble alluvial carnelian (chalcedony) from QLD's Agate Creek—iron oxide gives the color, possibly traded historically from western QLD sites. Scratch test on glass

Your first purple crystal (~3cm) from Mt Morgan resembles amethyst quartz (Mohs 7) from local volcanic deposits—its shape could suit sharpening, fitting Pleistocene tools.

Fascinating collection! These green pebbles (up to 5cm) with vitreous luster and irregular, tumbled shapes match green sapphire from QLD's Anakie/Rubyvale fields—natural silica gems (hardness 6.5-9), not cast furnace glass (hardness ~5.5, lacks crystal facets). Colors from trace metals; shapes via river erosion. Aboriginal use is possible, but natural origin. Test UV/scratch; QLD Museum for value?

Remarkable haul from the mine dump! These ~4oz bars (bronze-like with verdigris) likely 9ct rose gold (copper-gold alloy) assay ingots from 1800s QLD goldfields, not shipping tools—perhaps for testing ore purity. Crucibles and lead-glass slags fit assay waste. Weigh/test density (9ct ~12-14g/cm³); QLD Museum for authentication/value