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Prospecting is a big part of the altered game play in Harder Ores, making the player want to explore the surface world in order to find resources, rather than blindly digging around until stumbling into them by accident. This makes the search for ores intentional, predictable, and engaging.

These mechanics exist as part of the standalone mod, Ore Flowers. In 1.10, Ore Flowers is required by Harder Ores, rather than being a separate, cloned, codebase.

Locating Ore[]

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There are three primary methods to locating ore.

  1. Exploring the surface, looking for various plants that indicate the presence of ore in a region. Each ore has its own unique plant that indicates a nearby vein (seen at the right or in the table at the bottom of the page). These patches are relatively rare and will not mark every vein of ore. They are also very imprecise, spawning somewhere within 30 blocks (measured along the X and Z directions) of the vein, regardless of how far underground it is.
  1. Bonemeal. This method is best used after locating one of these natural occurring plant clusters in order to narrow down your search before you start digging. By grinding bones into bonemeal and using it to grow flowers you will occasionally get some of the flowers shown at the right if their associated ore is nearby. You will get more of them and get them more often, the more ore is available in the chunk, as far down as about 48 blocks.  If the primary ore cluster is farther than 32 blocks down, the flower occurance rate will drop off quickly (technical details: every ore block in every 8 block vertical slice of each chunk is counted where one third of the total is saved in the next slice up, the remaining two thirds in the actual slice).  Additionally, bonemeal is tweaked to work on sand blocks as well, spawning dead shrubs normally, but also desert flowers (see below).
  1. The sluice has a much wider search area, but less depth, than bonemeal and will reduce the amount of ore in the local soil to produce nuggets and tiny dust piles (technical details: the ore blocks themselves are unaffected, but the data structure used to track ore presence has its values depleted, simulating the filtering and collecting of the ambient ore flakes: you can only pan a river so much afterall).  So while the sluice can generate some early ore production, it isn't long-term viable and can make locating the vein with bonemeal harder in the future.

Once you have located an area that likely contains ore, you have to go mining in order to find the vein itself. Once found, it should supply you with as much material as you are likely to use for some time, and will likely support several players in SMP, even with the high demands of various tech mods.  Due to the non-homogynous nature of the ore distribution and the relative rarity, it may even be possible for a server to create a small, viable, economy where one player or group of players set up a mining and refining outpost near one vein and another player or group sets up near a different ore vein.

Additionally, veins tend to be found easily by exploring caves, so if during your excavation you find a cave (or hear monsters or bats nearby), take a look around, the vein may have passed through, and it's a lot easier to spelunk than to excavate.

Plants (Grass)[]

Icon Name Ore Indicator More Information
Poorjoe.png Poorjoe Iron Poorjoe on Wikipedia
Horsetail.png Horsetail Gold Mineral Indicator Plants and Horsetail on Wikipedia
Vallozia.png Vallozia (Vallozia Candida) Diamond Mineral Indicator Plants (picture)
Flame-lily.png Flame Lily Redstone Flame Lily on Wikipedia, while not a real world indicator, it is a very beautiful flower that seemed appropriate
Tansy.png Tansy Tin Geology of Tin Deposits, 1979 and Tansy on Wikipedia
Hauman.png Hauman (Haumaniastrum Robertii) Copper Geologist Indicator Plants (picture)
Leadplant.png Leadplant Lead Geologist Indicator Plants and Leadplant on Wikipedia
Red amaranth.png Red Amaranth Uranium

1.7 spawns the Primrose (see below)

Mustard.png Indian mustard Silver List of Hyperaccumulators and Indian Mustard on Wikipedia
Shrub-violet.png Shrub Violet Nickel (Ferrous) List of Hyperaccumulators (picture)
Affine.png Affine Aluminum

List of Hyperaccumulators (picture)

Melastoma Affine and Melastoma Malabathricum (see Thorium below) are very closely related plants.

Clover.png Red Clover Zinc List of Hyperaccumulators (picture)
Camellia.png Camellia Flourite Camellia on Wikipedia (picture)
Malva.png Malva Cadmium A newly found cadmium accumulator--Malva sinensis Cavan. (used this picture in order to avoid a large number of purple flowers)
Melastoma.png Melastoma Thorium Potential of Melastoma Malabathricum as a Bioaccumulator of Uranium and Thorium from Soil (picture)
Broadleaf arrowhead.png Broadleafed Arrowhead Osmium Wikipedia entry.
Stoneroot.png Stoneroot Stone Not used in vanilla setups, intended for custom worlgen where stone is not the base ground material. Wikipedia entry.

Plants (Sand)[]

These plants spawn in the desert or other sandy areas (1.10).  Not all resources have both a grass flower and a desert flower.

[WIP]

Icon Name Ore Indicator More Information
Red sorrel.png Red Sorrel Iron

Commonly found in abandoned mining sites, thriving on the high acidity. Red Sorrel on Wikipedia.

Chandelier tree.png Chandelier Tree Diamond Pandanus candelabrum on Wikipedia.
Aveloz.png Aveloz Redstone

Also known as "Sticks on Fire" due to its orange-red appearance. Wikipedia entry. Can be milled into a furnace fuel.

Copper flower.png Copper Flower Copper List of Hyperaccumulators, Wikipedia entry.
Sheeps fescue.png Sheep's Fescue Lead Wikipedia entry.
Primrose.png Evening Primrose Uranium / Pitchblende Origin of Geobotany and Wikipedia entry.
Rapeseed.png Rapeseed Silver List of Hyperaccumulators
Milkwort.png Milkwort Nickel List of Hyperaccumulators
Madwort.png Madwort Platinum Wikipedia entry.
Zilla.png Zilla Zinc List of Hyperaccumulators, Wikipedia entry.
Marigold.png Aztec Marigold Cadmium Growth, Cadmium Accumulation and Physiology of Marigold and Wikipedia entry.
Indian paintbrush.png Indian Paintbrush Osmium Also a known selenium accumulator. Wikipedia entry.
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