The gold pan with areas of differing surface textures includes a disc-shaped, planar bottom panel, and an upwardly and outwardly extending frustoconical sidewall attached to the circular perimeter of the bottom panel. The circular top of the frustoconical sidewall includes a rounded upper rim. The rounded upper rim includes reinforcement ribs, and a hole defined therethrough for hanging the gold pan on a hook or other structure. A downwardly extending flange is attached to the circular perimeter of the bottom panel, for stabilizing the pan on a support surface. The frustoconical sidewall includes a set of circumferentially extending tapering riffles. In addition, the frustoconical sidewall may include a smooth area as well as a second set of circumferentially extending riffles. The second set of riffles can have a constant width and height.

A gold pan and method of panning A concave pan with lip and an array of curved ribs with linear central regions coupled to and extending above and forward from lip, each rib including a cavity oriented to be orthogonal to the concavity of the pan to trap material flowing thereover. The lip has a front region with a greater radius of curvature than a radius of curvature of a back region. There are a plurality of finishing fins extending into an interior of the concave pan from a back wall or side wall thereof Panning is performed by disposing particulate material within a provided pan; flowing material over the ribs; flowing material over a plurality of finishing fins; collecting particulate material in a corner of a flat bottom; tipping the pan; and tapping a side thereof to separate heavies.

A gold pan and method of panning. A concave pan with lip and an array of curved ribs with linear central regions coupled to and extending above and forward from lip, each rib including a cavity oriented to be orthogonal to the concavity of the pan to trap material flowing thereover. The lip has a front region with a greater radius of curvature than a radius of curvature of a back region. There are a plurality of finishing fins extending into an interior of the concave pan from a back wall or side wall thereof. Panning is performed by disposing particulate material within a provided pan; flowing material over the ribs; flowing material over a plurality of finishing fins; collecting particulate material in a corner of a flat bottom; tipping the pan; and tapping a side thereof to separate heavies.

A gold pan and method of panning. A concave pan with lip and an array of curved ribs with linear central regions coupled to and extending above and forward from lip, each rib including a cavity oriented to be orthogonal to the concavity of the pan to trap material flowing thereover. The lip has a front region with a greater radius of curvature than a radius of curvature of a back region. There are a plurality of finishing fins extending into an interior of the concave pan from a back wall or side wall thereof. Panning is performed by disposing particulate material within a provided pan; flowing material over the ribs; flowing material over a plurality of finishing fins; collecting particulate material in a corner of a flat bottom; tipping the pan; and tapping a side thereof to separate heavies.

A pulverizing dry-washer includes a frame, an upper feeder, a bi-directional pulverizing box, a recovery unit, and a counterweight fan assembly. The upper feeder is angularly attached to an upper end of the frame so that the ore can be screened and discharged into the bi-directional pulverizing box that is positioned below the upper feeder. The bi-directional pulverizing box is mounted onto the recovery unit to further to screen the ore that receives from the upper feeder. A riffle board within the recovery unit is then able to trap precious metal while clay/sedimentary material are discharged through the end of the recovery unit. The counterweight fan assembly is mounted within the recovery unit. An air flow is introduced into the recovery unit via the counterweight fan assembly so that the recovery unit and the bi-directional pulverizing box can be vibrated to separate the precious metal from clay/sedimentary material.

A pulverizing dry-washer includes a frame, an upper feeder, a bi-directional pulverizing box, a recovery unit, and a counterweight fan assembly. The upper feeder is angularly attached to an upper end of the frame so that the ore can be screened and discharged into the bi-directional pulverizing box that is positioned below the upper feeder. The bi-directional pulverizing box is mounted onto the recovery unit to further to screen the ore that receives from the upper feeder. A riffle board within the recovery unit is then able to trap precious metal while clay/sedimentary material are discharged through the end of the recovery unit. The counterweight fan assembly is mounted within the recovery unit. An air flow is introduced into the recovery unit via the counterweight fan assembly so that the recovery unit and the bi-directional pulverizing box can be vibrated to separate the precious metal from clay/sedimentary material.

A pan for separating granular material may include a bottom wall and a sidewall. The sidewall may have an upper perimeter and a lower perimeter, and the lower perimeter may be coupled to the bottom wall so that the bottom wall and sidewall are watertight or otherwise configured to hold a volume of water. Preferably, the upper perimeter may be larger in dimension than the lower perimeter. A baffle plate may be coupled to the sidewall so that the baffle plate may be positioned between the upper perimeter and the lower perimeter. The baffle plate may have a proximal surface and an opposing distal surface, and portions of the proximal surface may contact the sidewall. A pocket may be formed between the bottom wall, the first baffle plate, and a portion of the sidewall that is between the bottom wall and sidewall.

A gold pan and method of panning. A concave pan with lip and an array of curved ribs with linear central regions coupled to and extending above and forward from lip, each rib including a cavity oriented to be orthogonal to the concavity of the pan to trap material flowing thereover. The lip has a front region with a greater radius of curvature than a radius of curvature of a back region. There are a plurality of finishing fins extending into an interior of the concave pan from a back wall or side wall thereof. Panning is performed by disposing particulate material within a provided pan; flowing material over the ribs; flowing material over a plurality of finishing fins; collecting particulate material in a corner of a flat bottom; tipping the pan; and tapping a side thereof to separate heavies.

A gold pan and method of panning. A concave pan with lip and an array of curved ribs with linear central regions coupled to and extending above and forward from lip, each rib including a cavity oriented to be orthogonal to the concavity of the pan to trap material flowing thereover. The lip has a front region with a greater radius of curvature than a radius of curvature of a back region. There are a plurality of finishing fins extending into an interior of the concave pan from a back wall or side wall thereof. Panning is performed by disposing particulate material within a provided pan; flowing material over the ribs; flowing material over a plurality of finishing fins; collecting particulate material in a corner of a flat bottom; tipping the pan; and tapping a side thereof to separate heavies.

A slurry handling apparatus includes at least one reception hopper includes a base, a rear wall and opposing side walls, and an opening provided in the base. Slurry delivered into the reception hopper from a tanker can pass through the opening in the base, and a respective first dewatering screen having an apertured screening deck is located beneath the at least one reception hopper so that slurry passing through the opening is delivered onto the deck of the respective screen, with undersize material and water passing through the apertures of the deck to be received within a sump, and with oversize material passing over the deck to be discharged from a downstream end of the deck.